Italian agire

← Proto-Indo-European *h₂eǵ- (root)

← Proto-Indo-European *h₂éǵeti (inherited)

← Proto-Indo-European *h₂eǵ- (mention)

← Proto-Italic *agō (inherited)

← Latin *agēscō (mention)

← Latin agō (inherited)

← Latin agere (mention)

→ Esperanto agi (borrowed)

→ Italian azione (link)

→ Italian retroagire (prefix)