Where does “tan” come from?

tan (Middle Welsh) comes from Proto-Brythonic tan, from Proto-Celtic teɸnets, from Proto-Indo-European tep- — to be warm, be hot.

Ancestry of “tan”, step by step

StepLanguageWordMeaning
1Proto-Brythonictanunder; fire
2Proto-Celticteɸnetsfire
3Proto-Indo-Europeantep-to be warm, be hot

Words derived from “tan”

Every word from Proto-Indo-European tep- →Every word from Proto-Celtic teɸnets →Every word from Proto-Brythonic tan →