Webster's Dictionary, 1913

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Invert transitive verb [ imperfect & past participle Inverted ; present participle & verbal noun Inverting .] [ Latin invertere , inversum ; prefix in- in + vertere to turn. See Verse .]

1. To turn over; to put upside down; to upset; to place in a contrary order or direction; to reverse; as, to invert a cup, the order of words, rules of justice, etc.

That doth invert the attest of eyes and ears,
As if these organs had deceptious functions.

Such reasoning falls like an inverted cone,
Wanting its proper base to stand upon.

2. (Mus.) To change the position of; - - said of tones which form a chord, or parts which compose harmony.

3. To divert; to convert to a wrong use. [ Obsolete] Knolles.

4. (Chemistry) To convert; to reverse; to decompose by, or subject to, inversion. See Inversion , noun , 10.

Invert intransitive verb (Chemistry) To undergo inversion, as sugar.

Invert adjective (Chemistry) Subjected to the process of inversion; inverted; converted; as, invert sugar.

Invert sugar (Chemistry) , a variety of sugar, consisting of a mixture of dextrose and levulose, found naturally in fruits, and produced artificially by the inversion of cane sugar (sucrose); also, less properly, the grape sugar or dextrose obtained from starch. See Inversion , Dextrose , Levulose , and Sugar .

Invert noun (Masonry) An inverted arch.

Invertase noun (Chemistry) (a) An enzyme capable of effecting the inversion of cane suger, producing invert sugar. It is found in many plants and in the intestines of animals. (b) By extension, any enzyme which splits cane sugar, milk sugar, lactose, etc., into monosaccharides.

Invertebral adjective (Zoology) Same as Invertebrate .

Invertebrata noun plural [ New Latin , from Latin in- not + vertebratus vertebrate.] (Zoology) A comprehensive division of the animal kingdom, including all except the Vertebrata.

Invertebrate adjective (Zoology) Destitute of a backbone; having no vertebræ; of or pertaining to the Invertebrata. -- noun One of the Invertebrata.

Age of invertebrates . See Age , and Silurian .

Invertebrated adjective Having no backbone; invertebrate.

Inverted adjective

1. Changed to a contrary or counterchanged order; reversed; characterized by inversion.

2. (Geol.) Situated apparently in reverse order, as strata when folded back upon themselves by upheaval.

Inverted arch (Architecture) , an arch placed with crown downward; -- much used in foundations.

Invertedly adverb In an inverted order. Derham.

Invertible adjective [ From Invert .]

1. Capable of being inverted or turned.

2. (Chemistry) Capable of being changed or converted; as, invertible sugar.

Invertible adjective [ Prefix in- not + Latin vertere to turn + -ible .] Incapable of being turned or changed.

An indurate and invertible conscience.

Invertin noun (Physiol. Chem.) An unorganized ferment which causes cane sugar to take up a molecule of water and be converted into invert sugar.

Invest transitive verb [ imperfect & past participle Invested ; present participle & verbal noun Investing .] [ Latin investire , investitum ; prefix in- in + vestire to clothe, from vestis clothing: confer French investir . See Vest .]

1. To put garments on; to clothe; to dress; to array; -- opposed to divest . Usually followed by with , sometimes by in ; as, to invest one with a robe.

2. To put on. [ Obsolete]

Can not find one this girdle to invest .

3. To clothe, as with office or authority; to place in possession of rank, dignity, or estate; to endow; to adorn; to grace; to bedeck; as, to invest with honor or glory; to invest with an estate.

I do invest you jointly with my power.

4. To surround, accompany, or attend.

Awe such as must always invest the spectacle of the guilt.

5. To confer; to give. [ R.]

It investeth a right of government.

6. (Mil.) To inclose; to surround or hem in with troops, so as to intercept succors of men and provisions and prevent escape; to lay siege to; as, to invest a town.

7. To lay out (money or capital) in business with the view of obtaining an income or profit; as, to invest money in bank stock.

Invest intransitive verb To make an investment; as, to invest in stocks; -- usually followed by in .

Investient adjective [ Latin investiens , present participle of investire .] Covering; clothing. [ R.] Woodward.

Investigable adjective [ Latin investigabilis . See Investigate .] Capable or susceptible of being investigated; admitting research. Hooker.

Investigate transitive verb [ imperfect & past participle Investigated ; present participle & verbal noun Investigating .] [ Latin investigatus , past participle of investigare to investigate; prefix in- in + vestigare to track, trace. See Vestige .] To follow up step by step by patient inquiry or observation; to trace or track mentally; to search into; to inquire and examine into with care and accuracy; to find out by careful inquisition; as, to investigate the causes of natural phenomena.

Investigate intransitive verb To pursue a course of investigation and study; to make investigation.

Investigation noun [ Latin investigatio : confer French investigation .] The act of investigating; the process of inquiring into or following up; research; study; inquiry, esp. patient or thorough inquiry or examination; as, the investigations of the philosopher and the mathematician; the investigations of the judge, the moralist.

Investigative adjective Given to investigation; inquisitive; curious; searching.

Investigator noun [ Latin : confer French investigateur .] One who searches diligently into a subject.

Investiture noun [ Late Latin investitura : confer French investiture .]

1. The act or ceremony of investing, or the state of being invested, as with an office; a giving possession; also, the right of so investing.

He had refused to yield up to the pope the investiture of bishops.
Sir W. Raleigh.

2. (Feudal Law) Livery of seizin.

The grant of land or a feud was perfected by the ceremony of corporal investiture , or open delivery of possession.

3. That with which anyone is invested or clothed; investment; clothing; covering.

While we yet have on
Our gross investiture of mortal weeds.

Investive adjective Investing. [ R.] Mir. for Mag.

Investment noun
1. The act of investing, or the state of being invested.

2. That with which anyone is invested; a vestment.

Whose white investments figure innocence.

3. (Mil.) The act of surrounding, blocking up, or besieging by an armed force, or the state of being so surrounded.

The capitulation was signed by the commander of the fort within six days after its investments .

4. The laying out of money in the purchase of some species of property; the amount of money invested, or that in which money is invested.

Before the investment could be made, a change of the market might render it ineligible.
A. Hamilton.

An investment in ink, paper, and steel pens.

Investor noun One who invests.

Investure noun Investiture; investment. [ Obsolete] Bp. Burnet.

Investure transitive verb To clothe; to invest; to install. [ Obsolete] "Monks . . . investured in their copes." Fuller.

Inveteracy noun [ From Inveterate .]

1. Firm establishment by long continuance; firmness or deep-rooted obstinacy of any quality or state acquired by time; as, the inveteracy of custom, habit, or disease; -- usually in a bad sense; as, the inveteracy of prejudice or of error.

An inveteracy of evil habits that will prompt him to contract more.
A. Tucker.

2. Malignity; spitefulness; virulency.

The rancor of pamphlets, the inveteracy of epigrams, and the mortification of lampoons.

Inveterate adjective [ Latin inveteratus , past participle of inveterare to render old; prefix in- in + vetus , veteris , old. See Veteran .]

1. Old; long-established. [ Obsolete]

It is an inveterate and received opinion.

2. Firmly established by long continuance; obstinate; deep-rooted; of long standing; as, an inveterate disease; an inveterate abuse.

Heal the inveterate canker of one wound.

3. Having habits fixed by long continuance; confirmed; habitual; as, an inveterate idler or smoker.

4. Malignant; virulent; spiteful. H. Brooke.

Inveterate transitive verb To fix and settle by long continuance. [ Obsolete] Bacon.

Inveterately adverb In an inveterate manner or degree. " Inveterately tough." Hawthorne.

Inveterateness noun Inveteracy. Sir T. Browne.

Inveteration noun [ Latin inveteratio .] The act of making inveterate. [ R.] Bailey.

Invict adjective [ Latin invictus . See In- not, and Victor .] Invincible. [ Obsolete] Joye.

Invidious adjective [ Latin invidiosus , from invidia envy. See Envy , and confer Envious .]

1. Envious; malignant. [ Obsolete] Evelyn.

2. Worthy of envy; desirable; enviable. [ Obsolete]

Such a person appeareth in a far more honorable and invidious state than any prosperous man.

3. Likely to incur or produce ill will, or to provoke envy; hateful; as, invidious distinctions.

Agamemnon found it an invidious affair to give the preference to any one of the Grecian heroes.

-- In*vid"i*ous*ly , adverb -- In*vid"i*ous*ness , noun

Invigilance, Invigilancy noun [ in- not + vigilance : confer Old French invigilance .] Want of vigilance; neglect of watching; carelessness.

Invigor (ĭn*vĭg"ẽr) transitive verb To invigorate. [ Obsolete]

Invigorate (-āt) transitive verb [ imperfect & past participle Invigorated ; present participle & verbal noun Invigorating .] [ Prefix in- in + vigor .] To give vigor to; to strengthen; to animate; to give life and energy to.

Christian graces and virtues they can not be, unless fed, invigorated , and animated by universal charity.

Syn. -- To refresh; animate; exhilarate; stimulate.

Invigoration noun The act of invigorating, or the state of being invigorated.

Invile transitive verb To render vile. [ Obsolete] Daniel.

Invillaged p. adjective Turned into, or reduced to, a village. [ Obsolete] W. Browne.

Invincibility noun [ Confer French invincibilité .] The quality or state of being invincible; invincibleness.

Invincible adjective [ Latin invincibilis : confer French invincible . See In- not, and Vincible .] Incapable of being conquered, overcome, or subdued; unconquerable; insuperable; as, an invincible army, or obstacle.

Lead forth to battle these my sons
Invincible .

-- In*vin"ci*ble*ness , noun -- In*vin"ci*bly , adverb

Inviolability noun [ Latin inviolabilitas : confer French inviolabilité .] The quality or state of being inviolable; inviolableness.

Inviolable adjective [ Latin inviolabilis : confer French inviolable . See Inviolate , adjective ]

1. Not violable; not susceptible of hurt, wound, or harm (used with respect to either physical or moral damage); not susceptible of being profaned or corrupted; sacred; holy; as, inviolable honor or chastity; an inviolable shrine.

He tried a third, a tough, well-chosen spear,
The inviolable body stood sincere.

2. Unviolated; uninjured; undefiled; uncorrupted.

For thou, be sure, shalt give account
To him who sent us, whose charge is to keep
This place inviolable , and these from harm.

3. Not capable of being broken or violated; as, an inviolable covenant, agreement, promise, or vow.

Their almighty Maker first ordained
And bound them with inviolable bands.

And keep our faiths firm and inviolable .

Inviolableness noun The quality or state of being inviolable; as, the inviolableness of divine justice.

Inviolably adverb Without violation.