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 dair
Proto-Celtic *daru (inherited)
Ancient Greek δόρυ (cognate)
Proto-Indo-European *dóru (inherited)
Old Irish daur (mention)

Irish dair (inherited)
Scottish Gaelic darach (inherited)
Manx darragh (derived)
Old Irish daire (mention)
Old Irish derucc (mention)