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 ἦτα
Ancient Greek ἧτᾰ (mention)
Phoenician 𐤇‬ (borrowed)

English eta (derived)
English etacism (mention)
German Etazismus (derived)
Esperanto eto (borrowed)
Finnish eeta (derived)
Faroese eta (derived)
Ancient Greek ζῆτα (mention)
Icelandic eta (derived)
Japanese エータ (learned borrowing)
Japanese イータ (derived)
Russian эта (borrowed)