Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Polish
który
←
Proto-Indo-European
*kʷóteros
(inherited)
←
Proto-Slavic
*kotorъ
(inherited)
→
Polish
którykolwiek
(suffix)
→
Polish
któryś
(suffix)
→
Polish
którędy
(compound)