Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
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English buoy
Middle Dutch boeye (derived)
Middle Dutch boeye (derived)
Middle English boy (inherited)
Middle English boye (mention)
French bouée (mention)
Old French buie (derived)
Ancient Greek βόεος (derived)
Ancient Greek βόειος (mention)
Ancient Greek βοῦς (mention)
Proto-Indo-European *gʷow- (derived)
Latin boia (derived)

English boom (link)
English buoyage (suffix)
English buoyancy (suffix)
English buoyant (suffix)
English sonobuoy (prefix)
English buoylike (suffix)
English bewit (mention)
German Boje (cognate)
Irish bulla (link)
Hawaiian poe (borrowed)
Marshallese buwae (borrowed)
Norwegian Bokmål bøye (link)
Norwegian Nynorsk bøye (link)