Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
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Scottish Gaelic domh
Proto-Indo-European *dem- (root)
Proto-Indo-European *dṓm (derived)
Proto-Indo-European *dem- (mention)
Latin domus (derived)
Old Irish [[dom]], [[dam]] (inherited)

Old Irish dom (link)