Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Ukrainian
-сь
←
Polish
-ś
(link)
→
Kashubian
-s
(cognate)
→
Polish
-ś
(link)
→
Ukrainian
якийсь
(affix)