Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
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Irish gealt
Proto-Celtic *gʷeltis (inherited)
English wild (cognate)
Proto-Indo-European *[[gʷʰel-]]t- (derived)
Middle Irish geilt (inherited)
Old Irish gelt (mention)

Irish gealtach (suffix)
Irish gealtlann (affix)