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

→ English Avalon (derived)
→ Breton aval (inherited)
→ Welsh afal (inherited)
→ Irish úll (inherited)
→ Manx ooyl (inherited)
→ Cornish aval (inherited)
→ Latin Aballaba (derived)
→ Latvian ābols (cognate)
→ Old Irish ubull (inherited)