Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Belarusian
сь
→
Belarusian
хтосьці
(suffix)
→
Belarusian
хтось
(suffix)
→
Belarusian
штось
(suffix)