Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
...
Ancient Greek δέρκομαι
Proto-Indo-European *derḱ- (root)
Proto-Indo-European *derḱ- (derived)
Sanskrit दृश् (cognate)

English drake (mention)
English dragon (mention)
English pendragon (mention)
Irish dragan (mention)
Ancient Greek δράκων (mention)
Ancient Greek δράκος (mention)
Ancient Greek δορκάς (mention)
Ancient Greek δορκάς (mention)
Ancient Greek δέργμα (mention)
Ancient Greek ὑπόδρα (mention)
Latvian drakons (mention)
Marshallese tūrāikōn (mention)
Old Irish adcí (cognate)