souche

From Middle French souche, from Old French çoche, from Gaulish *tsukka, from Proto-Germanic *stukkaz (“stock; stump”). Cognate with Catalan and Spanish soca. More at English stock.

• IPA^(key): /suʃ/

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souche f (plural souches)

1. stump (of a tree)
2. (viral) strain

   une souche virale inédite a fait au minimum vingt morts

   an unknown viral strain has caused at least twenty deaths

3. (by extension, linguistics) root

   un mot de souche latine ― a word originating in Latin

4. (by extension, genealogy) origin

   un Américain de souche ― someone of American origin

5. (by extension, genetics) founder

• de souche

• “souche” in le Trésor de la langue française informatisé (The Digitized Treasury of the French Language).