Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Belarusian
хтось
←
Belarusian
хто
(suffix)
←
Belarusian
сь
(suffix)
←
Polish
ktoś
(cognate)
←
Ukrainian
хтось
(cognate)
→
Kashubian
chtos
(cognate)