Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
...
Polish -arnia

→ Czech -árna (cognate)
→ Polish księgarnia (affix)
→ Polish drukarnia (affix)
→ Polish wylęgarnia (affix)
→ Polish ptaszarnia (affix)
→ Polish sieczkarnia (affix)
→ Polish trupiarnia (affix)
→ Polish wędzarnia (affix)
→ Polish piwiarnia (affix)
→ Polish garbarnia (affix)
→ Polish suszarnia (affix)