Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
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Proto-Indo-European *piHwer-

→ Breton Iwerzhon (mention)
→ Welsh Iwerddon (mention)
→ Irish Éire (mention)
→ Scottish Gaelic Èirinn (mention)
→ Ancient Greek Ἰουερνία (derived)
→ Manx Nerin (derived)
→ Cornish Iwerdhon (mention)
→ Latin Hibernia (derived)