Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
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Estonian aeg
English aye (cognate)
Finnish aika (cognate)
Proto-Finnic *aika (inherited)
Proto-Germanic *aiwaz (derived)
Gothic 𐌰𐌹𐍅𐍃 (cognate)
Ingrian aiga (cognate)
Livonian āiga (cognate)
Lithuanian eigà (cognate)
Ludian aig (cognate)
Latvian eja (cognate)
Old Norse ævi (cognate)
Livvi aigu (cognate)
Veps aig (cognate)
Votic aika (cognate)

Estonian aasta (compound)
Estonian jääaeg (affix)
Estonian praegu (compound)
Estonian hooaeg (compound)
Estonian ajaleht (compound)
Estonian ajakirjanik (compound)
Estonian aeglane (suffix)
Estonian ajalugu (compound)
Estonian aastaaeg (compound)
Estonian endisaeg (compound)
Estonian kaasaegne (affix)
Estonian ajapiirang (compound)
Ingrian aika (cognate)
Karelian aika (cognate)
Karelian aiga (cognate)