
1) Obsolete unit of measurement
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https://www.crosswordclues.com/clue/coomb

Coomb is an alternate spelling of combe. It may also refer to: ...
Found on
http://en.wikipedia.org/wiki/Coomb
[unit] A coomb is a measure of volume. Its exact original details are not known. In 13th century England it was defined as 4 bushels (~140 L). It was in use in Norfolk until the 1790s or later, as a dry measure: `Ben sold my Wheat to the Marlingford Miller this Morning for 19 shillings per Coomb` - Parson Woodforde`s Diary, May 20, 1786. Th...
Found on
http://en.wikipedia.org/wiki/Coomb_(unit)

• (n.) Alt. of Coombe • (n.) A dry measure of four bushels, or half a quarter.
Found on
http://thinkexist.com/dictionary/meaning/coomb/
Coomb noun [ Anglo-Saxon
cumb a liquid measure, perhaps from Late Latin
cumba boat, tomb of stone, from Greek ... hollow of a vessel, cup, boat, but confer German
kumpf bowl.] A dry measure of four bushels, or half a quarter. [ Written also
comb .]
Found on
http://www.encyclo.co.uk/webster/C/155
No exact match found.