Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Polish
próżny
←
Proto-Slavic
*porzdьnъ
(inherited)
←
Old Polish
prózny
(inherited)
→
Polish
próżnia
(affix)
→
Polish
opróżnić
(affix)
→
Polish
próżność
(affix)
→
Polish
próżniak
(affix)
→
Polish
próżnować
(affix)
→
Silesian
prōzny
(cognate)