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 тьма
Old Church Slavonic свѣтъ (link)
Old Church Slavonic отьмьнити (link)
Old Church Slavonic отьмьнѣти (link)
Old Church Slavonic тьмьница (link)
Old Church Slavonic тьмьнъ (link)
Mongolian түм (cognate)
Proto-Slavic *tьma (inherited)

Old Church Slavonic тьмьница (suffix)
Old Church Slavonic тьмьнъ (suffix)