Meaning

noun a sharp steel wedge that cuts loose the top layer of soil

originFrom Middle English plowgh-schare, plowh schare, equivalent to plow + 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…

Etymology from Wiktionary, CC BY-SA 3.0