Where does “adaryddiaeth” come from?

adaryddiaeth (Welsh) comes from Welsh adarydd, from Welsh adar, from Old Welsh atar, from Proto-Celtic ɸetnos, from Proto-Indo-European péth₂r̥, from Proto-Indo-European peth₂- — to spread out; to fly.

adaryddiaeth (Welsh): ornithology

Definitions

  1. ornithology

Ancestry of “adaryddiaeth”, step by step

StepLanguageWordMeaning
1Welshadaryddornithologist
2Welshadarbirds; young birds, chicks
3Old Welshatarbird
4Proto-Celticɸetnosbird
5Proto-Indo-Europeanpéth₂r̥wing; feather
6Proto-Indo-Europeanpeth₂-to spread out; to fly
Every word from Proto-Indo-European peth₂- →Every word from Proto-Indo-European péth₂r̥ →Every word from Proto-Celtic ɸetnos →