Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
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German ern

→ German hölzern (suffix)
→ German eiern (suffix)
→ German begeistern (confix)
→ German zwinkern (suffix)
→ German verschlimmern (confix)
→ German steinern (suffix)
→ German lagern (suffix)
→ German gläsern (suffix)
→ German stählern (suffix)
→ German blechern (suffix)
→ German knöchern (suffix)
→ German schweinern (suffix)
→ German tönern (suffix)
→ German wächsern (suffix)
→ German walgern (suffix)