Where does “smooth” come from?

smooth (Middle English) comes from Old English smōþ, from Proto-Germanic smanþiz — flat, smooth, soft.

Ancestry of “smooth”, step by step

StepLanguageWordMeaning
1Old Englishsmōþsmooth, serene, calm, unruffled
2Proto-Germanicsmanþizflat, smooth, soft

Words derived from “smooth”

Every word from Proto-Germanic smanþiz →Every word from Old English smōþ →