Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
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Old Irish ach

→ Old Irish fíadach (suffix)
→ Old Irish lennach (suffix)
→ Old Irish fingalach (suffix)
→ Old Irish bruach (suffix)
→ Old Irish gáethach (suffix)
→ Old Irish gnáthach (suffix)
→ Old Irish cnoccach (suffix)
→ Old Irish grendach (suffix)
→ Old Irish dubach (suffix)