Where does “perthnasol” come from?

perthnasol (Welsh) comes from Welsh perthynas, from Welsh perthyn, from Middle Welsh perthyn, from Proto-Brythonic *perθɨnɨd, from Latin pertineō, from Latin per, from Latin Ad, from Latin illic — that.

perthnasol (Welsh): relevant, pertinent

Definitions

  1. relevant, pertinent

Ancestry of “perthnasol”, step by step

StepLanguageWordMeaning
1Welshperthynasrelation, relative
2Welshperthynto belong
3Middle Welshperthyn
4Proto-Brythonic*perθɨnɨd
5Latinpertineōto extend, stretch out, reach, matter
6Latinperthrough, by means of; throughout, during
7LatinAdtoward, to
8Latinilliche, she, it, yonder, that, overthere; in that...
9Latinillethat; those; "; demonstrative pronoun "; that...
10LatinolleArchaic form of ille
11Proto-Italic*olnosthat
Every word from Proto-Italic *olnosEvery word from Latin olleEvery word from Latin ille