Jacent

Ja'cent adjective [ Latin jacens , present participle of jacere to lie: confer French jacent .] Lying at length; as, the jacent posture. [ R.] Sir H. Wotton.
Found on http://www.encyclo.co.uk/webster/J/1

Jacent

• (a.) Lying at length; as, the jacent posture.
Found on http://thinkexist.com/dictionary/meaning/jacent/

jacent

lying flat; sluggish
Found on http://phrontistery.info/j.html
No exact match found