Old Irish óc

← Proto-Celtic *yowankos (inherited)

← Welsh ieuanc (cognate)

← English young (cognate)

← Proto-Indo-European *h₂yuh₁n̥ḱós (inherited)

← Old Irish óac (mention)

→ Irish óg (inherited)

→ Irish ógánach (mention)

→ Irish óglach (mention)

→ Irish óige (mention)

→ Scottish Gaelic òg (inherited)

→ Scottish Gaelic òganach (mention)

→ Scottish Gaelic ògan (mention)

→ Scottish Gaelic òglach (mention)

→ Manx aa (mention)

→ Manx aeg (inherited)

→ Manx aegan (mention)

→ Latin iuvenis (cognate)

→ Middle Irish ógán (mention)

→ Old Irish óclach (affix)

→ Old Irish oítiu (mention)