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Manx -agh
← Proto-Celtic *-ākos (inherited)
← Welsh -og (cognate)
← Manx -ag (doublet)
← Proto-Indo-European [[*-eh₂kos]], [[*-eh₂ḱos]] (inherited)
← Proto-Indo-European *-éh₂ (mention)
← Proto-Indo-European [[*-kos|*-kos, *-ḱos]] (mention)
← Old Irish -ach (inherited)

→ Welsh -og (cognate)
→ Manx -ag (doublet)
→ Manx Manninagh (affix)
→ Manx jeeragh (affix)
→ Manx aashagh (affix)
→ Manx Sostynagh (affix)
→ Manx darragh (mention)
→ Manx Gaelgagh (affix)
→ Manx Yernagh (affix)
→ Manx feeaihagh (affix)
→ Manx keird-heshaghtagh (affix)
→ Manx keirdagh (affix)
→ Manx firrinagh (affix)
→ Manx Gailckagh (affix)
→ Manx Frangagh (affix)
→ Manx Baarlagh (affix)
→ Manx biljagh (affix)
→ Manx Spaainagh (affix)
→ Manx Austrailagh (affix)
→ Manx Loghlynagh (affix)
→ Manx Soolynagh (affix)
→ Manx Jamaicagh (affix)
→ Manx Coobagh (affix)
→ Manx Estoinagh (affix)
→ Manx Canadagh (affix)
→ Manx troailtagh (affix)
→ Manx sleitagh (affix)
→ Manx uneashagh (affix)
→ Manx un-çhengagh (affix)
→ Manx daa-hengagh (affix)
→ Manx lhiass-ennymagh (affix)
→ Manx twoaieagh (affix)
→ Manx twoaieagh (affix)
→ Manx breagagh (affix)
→ Manx Sheltynagh (affix)
→ Manx tonnagh (affix)
→ Manx Levaantagh (affix)
→ Manx keintyssagh (affix)
→ Manx Injinagh (affix)
→ Manx yindyssagh (affix)