Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
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Irish croí
Proto-Celtic *kridyom (inherited)
Proto-Indo-European *ḱḗr (derived)
Old Irish cride (inherited)

Irish droch-chroí (affix)
Irish mórchroí (affix)
Irish croílár (affix)
Irish croíúil (suffix)
Irish croíbhriseadh (affix)
Irish croíchruthach (affix)
Irish anchroí (affix)
Irish cruachroíoch (affix)
Irish dúchroíoch (affix)
Irish croíán (affix)
Scottish Gaelic cridhe (mention)