Where does “wither” come from?

wither (Old Dutch) comes from Proto-West Germanic wiþr, from Proto-Germanic wiþrą, from Proto-Indo-European wī-tero-, from Proto-Indo-European wi — apart, asunder; away from, against.

Ancestry of “wither”, step by step

StepLanguageWordMeaning
1Proto-West Germanicwiþrtoward, against
2Proto-Germanicwiþrątoward, against
3Proto-Indo-Europeanwī-tero-further apart
4Proto-Indo-Europeanwiapart, asunder; away from, against

Words derived from “wither”

Every word from Proto-Indo-European wi →Every word from Proto-Indo-European wī-tero- →Every word from Proto-Germanic wiþrą →