Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
...
Czech písek
← Proto-Slavic *pěsъkъ (inherited)
← Old Czech piesek (inherited)

→ Czech pískovec (suffix)
→ Czech písečný (suffix)
→ Czech písčina (affix)
→ Czech písčitý (suffix)
→ Czech pískový (affix)