Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
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Latin caupo
Ancient Greek κᾰ́πηλος (cognate)
Ancient Greek ἐπρῐάμην (mention)
Ancient Greek ὠνέομαι (mention)
Ancient Greek ἀφνειός (cognate)
Ancient Greek κάπτω (cognate)
Hittite 𒄩𒀊𒉺𒅈 (cognate)
Proto-Indo-European *kʷreyh₂- (cognate)
Proto-Indo-European *h₃ep- (mention)
Latin ops (mention)

German kaufen (derived)
Finnish kauppa (derived)
Gothic 𐌺𐌰𐌿𐍀𐍉𐌽 (derived)
Luxembourgish kafen (derived)
Old Frisian kap (derived)
Romanian precupeț (derived)
Romanian cupeț (derived)
Swedish köpa (cognate)