Where does “uncouth” come from?

uncouth (Middle English) comes from Old English uncūþ, from Proto-West Germanic *unkunþ, from Proto-Germanic unkunþaz, from Proto-Germanic un-, from Proto-Indo-European n̥-, from Proto-Indo-European ne — not.

Ancestry of “uncouth”, step by step

StepLanguageWordMeaning
1Old Englishuncūþunknown; unfamiliar; strange
2Proto-West Germanic*unkunþ—
3Proto-Germanicunkunþazunknown
4Proto-Germanicun-not, un-
5Proto-Indo-Europeann̥-not, un-
6Proto-Indo-Europeannenot

Words derived from “uncouth”

Every word from Proto-Indo-European ne →Every word from Proto-Indo-European n̥- →Every word from Proto-Germanic un- →