←
Proto-Indo-European *ne (inherited)
←
Proto-Indo-European *óynos (mention)
←
Old Latin noenum (inherited)
←
Old Portuguese non (inherited)
→
Dalmatian naun (cognate)
→
Kabuverdianu nau (derived)
→
Papiamentu no (derived)
→
Portuguese sim (mention)
→
Portuguese senão (compound)