←
Middle French son (inherited)
←
Old French son (inherited)
←
Old French suen (mention)
←
Old French suon (mention)
←
Old French son (inherited)
←
Proto-Indo-European *sewos (inherited)
←
Proto-Indo-European *swé (mention)
←
Proto-Italic *sowos (inherited)
←
Latin sonus (inherited)
←
Old Occitan segon (cognate)
→
Mauritian Creole so (derived)