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 *h₃ókʷs

Assamese আখি (inherited)
Welsh wyneb (mention)
Middle English eie (inherited)
Ancient Greek ἄνθρωπος (derived)
Ancient Greek ὤψ (inherited)
Ancient Greek ὄσσε (mention)
Ancient Greek ὄψ (derived)
Gujarati આંખ (derived)
Kachchi અખ (derived)
Kalasha (inherited)
Pali akkhi (inherited)
Maharastri Prakrit 𑀅𑀘𑁆𑀙𑀺 (inherited)
Polabian våťü (inherited)
Romani jakh (inherited)
Sanskrit अक्षि (inherited)
Sanskrit प्रतीक (mention)
Sanskrit अनक्ष् (derived)
Vaghri અખ્ખ (derived)
Old Armenian աչք (mention)