Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Russian
Польша
←
Belarusian
По́льшча
(cognate)
←
Russian
поля́к
(suffix)
←
Russian
-ша
(suffix)
←
Rusyn
По́льско
(cognate)
←
Ukrainian
По́льща
(cognate)