Where does “all-” come from?

all- (Welsh) comes from Proto-Celtic alyos, from Proto-Indo-European h₂élyos, from Proto-Indo-European h₂él- — to grow, nourish.

all- (Welsh): out, off, ex-, extra-; other, allo-

Definitions

  1. out, off, ex-, extra-; other, allo-

Ancestry of “all-”, step by step

StepLanguageWordMeaning
1Proto-Celticalyosother, second
2Proto-Indo-Europeanh₂élyosother, another
3Proto-Indo-Europeanh₂él-to grow, nourish

Words derived from “all-”

Every word from Proto-Indo-European h₂él- →Every word from Proto-Indo-European h₂élyos →Every word from Proto-Celtic alyos →