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 marb
Proto-Celtic *marwos (inherited)
Proto-Indo-European *mer- (root)
Proto-Indo-European *mr̥wós (inherited)
Proto-Indo-European *mer- (mention)

Old English morþor (cognate)
Breton maro (mention)
Irish marbh (inherited)
Scottish Gaelic marbh (inherited)
Old Irish marbán (suffix)
Old Irish marbaid (affix)