Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Czech
prázdný
←
Proto-Slavic
*porzdьnъ
(inherited)
→
Czech
vyprázdnit
(affix)
→
Czech
neprázdný
(affix)
→
Czech
prázdnota
(affix)
→
Silesian
prōzny
(cognate)