5 letters · 6 points in Scrabble
noun a relatively small granular particle of a substance
verb thoroughly work in
noun foodstuff prepared from the starchy grains of cereal grasses
originFrom Middle English greyn, grayn, grein, from Old French grain, grein, from Latin grānum (“seed”), from Proto-Indo-European *ǵr̥h₂nóm (“grain”). Doublet of corn, gram, granum, and grao.
Etymology from Wiktionary, CC BY-SA 3.0