Where does “siffleux” come from?

siffleux (French) comes from French eux, from Old French els, from Latin ille, from Latin olle, from Proto-Italic *olnos — that.

siffleux (French): groundhog, woodchuck, whistlepig

Definitions

  1. groundhog, woodchuck, whistlepig

Ancestry of “siffleux”, step by step

siffleux traces back through two separate lines of ancestry.

via French eux

StepLanguageWordMeaning
1FrencheuxThey: disjunctive form of ils
2Old Frenchelsthey
3Latinillethat; those; "; demonstrative pronoun "; that...
4LatinolleArchaic form of ille
5Proto-Italic*olnosthat

via French siffler

StepLanguageWordMeaning
1Frenchsifflerto whistle; to whistle for, to blow on a whistle...
2Latinsībilōto hiss
3Latinsuffixed to nouns or adjectives. Originally a-stem nouns. Later extended to nouns with other stems. Forms regular first-conjugation verbs
4Proto-Indo-EuropeanDerives nouns from roots
Every word from Proto-Italic *olnosEvery word from Latin olleEvery word from Latin ille