Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
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Serbo-Croatian -ник
Lithuanian laukinykas (mention)
Lithuanian laukas (mention)
Old Prussian laukinikis (mention)
Serbo-Croatian -ик (mention)
Proto-Slavic *-(ь)nikъ (inherited)

Serbo-Croatian водоник (affix)
Serbo-Croatian рјечник (affix)
Serbo-Croatian споменик (suffix)
Serbo-Croatian малоумник (affix)
Serbo-Croatian тисућник (affix)
Serbo-Croatian тисутњик (affix)
Serbo-Croatian бојовник (mention)
Serbo-Croatian кисеоник (affix)
Serbo-Croatian правник (mention)
Serbo-Croatian -ница (suffix)
Serbo-Croatian двојник (affix)
Serbo-Croatian заточник (affix)
Serbo-Croatian повереник (affix)
Serbo-Croatian повјереник (affix)