Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
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Old Church Slavonic про

Old Church Slavonic пророкъ (prefix)
Old Church Slavonic проповѣдь (prefix)
Old Church Slavonic проити (prefix)
Old Church Slavonic прозьрѣти (prefix)
Old Church Slavonic прорещи (prefix)
Old Church Slavonic просвѣтити (prefix)