Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
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Italian otta
Old English uhta (cognate)
Proto-Germanic *unhtwǭ (derived)
Old High German uohta (cognate)

Italian ottaedrico (confix)
Italian ottaedro (confix)
Italian ottale (confix)
Italian giovanotta (suffix)
Italian ballotta (suffix)
Italian ottamero (confix)
Italian ottacordo (confix)
Italian ottanico (prefix)
Italian reginotta (suffix)