Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Polish
syty
←
Proto-Slavic
*sytъ
(inherited)
→
Lower Sorbian
syty
(cognate)
→
Polish
sytość
(suffix)