Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Polish
krągły
←
Proto-Slavic
*krǫglъ
(inherited)
→
Polish
krągłość
(suffix)
→
Polish
Krugły
(mention)
→
Polish
krąglik
(affix)
→
Russian
круглый
(cognate)