"mass of flour or meal moistened and mixed for baking," Middle English dogh, from Old English dag "dough," from Proto-Germanic *daigaz "something kneaded" (source also of Old Norse deig, Swedish deg, Middle Dutch deech, Dutch deeg, Old High German teic, German Teig, Gothic daigs "dough"), from PIE root *dheigh- "to form, build." Meaning "money" is from 1851 (compare bread (n.)).