Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
...
Proto-Slavic *česnъ

→ Bulgarian чесън (inherited)
→ Macedonian чесен (inherited)
→ Russian чеснок (affix)
→ Serbo-Croatian češanj (inherited)
→ Serbo-Croatian чешањ (inherited)
→ Serbo-Croatian česan (inherited)
→ Serbo-Croatian чесан (inherited)
→ Slovene česen (inherited)