Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
...
Slovene o-
← Slovene o (mention)
← Proto-Slavic *o(b)- (inherited)

→ Slovene obraniti (affix)
→ Slovene ošiliti (affix)
→ Slovene okopati (affix)
→ Slovene okopati (affix)
→ Slovene ogroziti (affix)
→ Slovene ožeti (affix)