COOMB

I.

or coombe ˈküm, ˈkōm

variant of combe

II. noun

or coom ˈküm

( -s )

Etymology: Middle English combe, from Old English cumb, a liquid measure; akin to Middle Low German kump bowl, vessel, Middle High German kumpf bowl, Persian gumbed arch, dome, drinking vessel, Old English cofa room — more at cove

: an English unit of capacity equal to 4 imperial bushels or 4.13 United States bushels