thatch

Origin

Variant of thack, from Middle English thache, thach, from Old English þæc (“roof-covering”), from Proto-West Germanic *þak, from Proto-Germanic *þaką (“covering”), from (o-grade of) Proto-Indo-European *(s)teg- (“cover”). Cognate with Icelandic þak, Dutch dak, German Dach, Norwegian tak, Swedish tak, Danish tag; and with Latin toga, Albanian thak (“awn, beard, pin, peg, tassel, fringe”), Lithuanian stogas (“roof”), Welsh to (“roof”). Related to Ancient Greek τέγος (tégos, “roof”) and στέγη (stégē, “roof”). See also English deech, deck.