Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
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English merman
Old English *meremann (inherited)
Old English meremenn (cognate)
Old English meremennen (mention)
Old English meremenin (mention)
German Meermann (cognate)
English mer- (affix)
English man (affix)
Middle English mereman (inherited)
Dutch meerman (cognate)

English mere (link)
English mer- (mention)
English mer- (mention)
English mermin (link)