Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
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Proto-Indo-European *dʰeygʷ-

English dig (mention)
English ditch (inherited)
English fix (derived)
English fichu (root)
English fichu (derived)
Old English dic (derived)
German Teich (derived)
French digue (mention)
Westrobothnian dikj (inherited)
Icelandic díki (derived)
Latin finis (derived)
Lithuanian diegti (mention)
Norwegian Bokmål infinitiv (root)
Norwegian Bokmål infinitiv (derived)
Norwegian Bokmål a-infinitiv (root)
Norwegian Bokmål a-infinitiv (derived)
Dutch fixeren (derived)
Dutch fiksen (derived)
Albanian deng (derived)
Swedish dike (derived)
Yiddish טײַך (derived)