ploughshare

noun

Etymology: From Middle English plowgh-schare, plowh schare, equivalent to plough + share. Cognate with Saterland Frisian Plouchskoar (“ploughshare”), West Frisian ploechskaar (“ploughshare”), Dutch ploegschaar (“ploughshare”), German Low German Ploogschoor (“ploughshare”), German Pflugschar (“ploughshare”), Danish plovskær (“ploughshare”), Norwegian plogskjær (“ploughshare”). Eclipsed non-native Middle English culter (“ploughshare”), from Old English culter (“ploughshare, coulter, dagger”), borrowed from Latin culter (“knife, razor”).

1. The cutting edge of a plough, typically a metal blade.

   “Holonyms: plough, plow < implement”