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 *h₂ep-

→ English abdest (root)
→ English ape (derived)
→ Avestan 𐬀𐬞 (root)
→ Avestan 𐬀𐬞 (derived)
→ Aragonese ibón (derived)
→ Baluchi آپ (derived)
→ Central Kurdish ئاو (inherited)
→ Welsh afon (root)
→ Welsh afon (mention)
→ Danish fiske (derived)
→ Spanish ibón (derived)
→ Persian آب (root)
→ Persian آب (inherited)
→ Persian آبدست (root)
→ Old French Amiens (root)
→ Old French Amiens (inherited)
→ Irish abhainn (root)
→ Irish abhainn (inherited)
→ Scottish Gaelic abhainn (root)
→ Scottish Gaelic abhainn (inherited)
→ Galician ámboa (mention)
→ Galician Asenso (derived)
→ Galician Asma (root)
→ Galician Asma (derived)
→ Ancient Greek Ἀσωπός (derived)
→ Ancient Greek Μεσσάπιος (mention)
→ Ancient Greek Ἰνωπός (derived)
→ Manx awin (root)
→ Manx awin (inherited)
→ Hindi गुलाब (root)
→ Hittite 𒄩𒉺𒀀 (derived)
→ Northern Kurdish av (root)
→ Northern Kurdish av (derived)
→ Latin apex (derived)
→ Latin Apulia (derived)
→ Latin apo (derived)
→ Latin apio (derived)
→ Latin amentum (derived)
→ Latin amnis (root)
→ Latin amnis (derived)
→ Latin Messapii (mention)
→ Latin Abdua (derived)