Where does “bitter” come from?

bitter (Middle High German) comes from Old High German bittar, from Old Norse bitr, from Proto-Germanic bitraz, from Proto-Indo-European bʰidrós — biting, splitting.

Ancestry of “bitter”, step by step

StepLanguageWordMeaning
1Old High Germanbittarbitter
2Old Norsebitrbitter
3Proto-Germanicbitrazbitter
4Proto-Indo-Europeanbʰidrósbiting, splitting

Words derived from “bitter

Every word from Proto-Indo-European bʰidrósEvery word from Proto-Germanic bitrazEvery word from Old Norse bitr