Old Portuguese ydade

← Proto-Indo-European *h₂eyu- (derived)

← Proto-Indo-European *h₂ey- (mention)

← Proto-Italic *aiwotāts (inherited)

← Proto-Italic *aiwom (mention)

← Proto-Italic *-tāts (mention)

← Latin aetātem (inherited)

← Latin aetās (mention)

← Latin aevitās (mention)

→ Galician idade (inherited)

→ Portuguese idade (inherited)