Catalan ocell

← French oiseau (cognate)

← Friulian uciel (cognate)

← Proto-Indo-European *h₂éwis (inherited)

← Italian uccello (cognate)

← Proto-Italic *awis (inherited)

← Latin avis (inherited)

← Occitan aucèl (cognate)

← Sicilian aceddu (cognate)

→ Catalan au (link)

→ Catalan ocellaire (affix)

→ French oiseau (cognate)

→ Friulian uciel (cognate)

→ Italian uccello (cognate)

→ Occitan aucèl (cognate)

→ Sicilian aceddu (cognate)

→ Walloon oujhea (cognate)