Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
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Irish iad
← Breton i (cognate)
← Breton int (mention)
← Welsh hwy (cognate)
← Welsh hwynt (mention)
← Middle Irish íat (inherited)
← Old Irish é (inherited)
← Old Irish é (mention)

→ Welsh hwy (cognate)
→ Welsh hwynt (cognate)
→ Irish is (mention)
→ Irish an (mention)
→ Irish más (mention)
→ Irish más (mention)
→ Irish ós (mention)
→ Irish ós (mention)
→ Irish iadsan (suffix)
→ Scottish Gaelic iad (cognate)