Where does “Fingalian” come from?

Fingalian (English) comes from English Fingal, from Scottish Gaelic Fionnghall, from Scottish Gaelic fionn, from Old Irish find, from Proto-Celtic Kʷennowindos, from Proto-Celtic windos, from Proto-Indo-European windo-, from Proto-Indo-European weyd- — to see.

Ancestry of “Fingalian”, step by step

StepLanguageWordMeaning
1EnglishFingalbest known in Scotland
2Scottish GaelicFionnghall
3Scottish Gaelicfionnfair; white; cataract
4Old Irishfindwhite
5Proto-CelticKʷennowindoswhite-headed, white-faced
6Proto-Celticwindoswhite
7Proto-Indo-Europeanwindo-
8Proto-Indo-Europeanweyd-to see
Every word from Proto-Indo-European weyd-Every word from Proto-Indo-European windo-Every word from Proto-Celtic windos