Proto-Italic *hezī

→ Catalan ahir (derived)

→ Spanish ayer (inherited)

→ French hier (inherited)

→ Friulian îr (inherited)

→ Italian ieri (inherited)

→ Neapolitan ajere (derived)

→ Occitan ièr (inherited)

→ Romanian ieri (inherited)

→ Old Portuguese eire (inherited)