colter

noun

col·​ter

variants or less commonly coulter

ˈkōltə(r) 

plural -s

: a knife, sharp disc, or other cutting tool that is attached to the beam of a plow to cut the sward in advance of the plowshare and moldboard

Word History

Etymology

Middle English colter, from Old English culter & Old French coltre, both from Latin culter plowshare, knife; akin to Old High German scala husk, Old Norse skilja to separate, Gothic skilja butcher, Greek skalis hoe, mattock, Lithuanian skélti to split

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