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 -tun
Gaulish *dūnon (derived)
Proto-Celtic *dūnom (derived)
Proto-Germanic *tūną (inherited)
Proto-Indo-European *dʰewh₂- (derived)

English Darlington (mention)
English Badminton (mention)
English Appleton (mention)
English Accrington (mention)
English Aighton (mention)
English Remington (mention)
English Covington (mention)