←
Proto-Indo-European *h₂eyu- (derived)
←
Proto-Indo-European *h₂ey- (mention)
←
Proto-Italic *aiwom (mention)
←
Proto-Italic *-tāts (mention)
←
Latin aetās (inherited)
←
Old Portuguese ydade (inherited)
→
Kabuverdianu idadi (derived)
→
Portuguese idoso (suffix)