←
Old English aþytan (cognate)
←
Proto-Indo-European (inherited)
←
Proto-Indo-European *(s)tew- (mention)
→
Asturian tos (inherited)
→
Asturian tus (inherited)
→
Catalan tos (inherited)
→
Spanish tos (inherited)
→
French toux (inherited)
→
Friulian tos (inherited)
→
Galician tose (inherited)
→
Italian tosse (inherited)
→
Norman toux (inherited)
→
Portuguese tosse (inherited)
→
Romanian tuse (inherited)
→
Aromanian tusi (inherited)
→
Walloon tosse (inherited)