Where does “extradossé” come from?

extradossé (French) comes from French dos, from Old French dos, from Vulgar Latin dossum, from Latin dorsum, from Proto-Italic dorsom.

Ancestry of “extradossé”, step by step

extradossé traces back through two separate lines of ancestry.

via French dos

StepLanguageWordMeaning
1Frenchdosback; backs; backstroke
2Old Frenchdosback
3Vulgar Latindossum
4Latindorsumback, part of the body between the neck and...
5Proto-Italicdorsom

via Latin extrā

StepLanguageWordMeaning
1Latinextrāon the outside
2LatinexterOn the outside, outward, external, outer; Of...
3Proto-Italic*eksteros
Every word from Proto-Italic dorsomEvery word from Latin dorsumEvery word from Vulgar Latin dossum