Where does “add-” come from?

add- (Welsh) comes from Proto-Brythonic ad-, from Proto-Celtic ati-, from Proto-Indo-European éti, from Proto-Indo-European h₁é, from Proto-Indo-European ǵʰe — Postpositional intensifying particle: indeed, at any rate, in fact.

add- (Welsh): affirmative prefix, emphasises prefixed word

Definitions

  1. affirmative prefix, emphasises prefixed word

Ancestry of “add-”, step by step

StepLanguageWordMeaning
1Proto-Brythonicad-—
2Proto-Celticati-re-, again, second, further
3Proto-Indo-Europeanétibeyond; over
4Proto-Indo-Europeanh₁éand, then
5Proto-Indo-EuropeanǵʰePostpositional intensifying particle: indeed, at any rate, in fact

Words derived from “add-”

Every word from Proto-Indo-European ǵʰe →Every word from Proto-Indo-European h₁é →Every word from Proto-Indo-European éti →