Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
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Old English dwimor
Proto-Germanic *dwemrą (inherited)
Proto-Germanic *dwemaną (derived)
Proto-Indo-European *dʰūw- (derived)

English magic (cognate)
English dwimmer (mention)
English dweomer (derived)
Old English gedwimor (prefix)
Old English gedwimor (link)