Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
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Ancient Greek πυκνός
Avestan 𐬞𐬎𐬯𐬁 (cognate)
Proto-Indo-European *puḱ- (derived)
Albanian putë (cognate)

English pyknic (mention)
English pyknosis (mention)
English pycnometer (derived)
English pycnodysostosis (mention)
English picnómetro (derived(en/es))
English pycno- (derived)
Bulgarian пикник (borrowed)
Ancient Greek Πνύξ (mention)
Ancient Greek θάμνος (mention)
Ancient Greek πύκα (mention)
Ancient Greek ἄμπυξ (mention)
Italian picnostilo (mention)
Translingual Pachycephala (mention)
Dutch pyknisch (derived)
Old Armenian հիւսեմ (cognate)