Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Polish
koryto
←
Proto-Slavic
*koryto
(inherited)
→
Czech
koryto
(cognate)
→
Lower Sorbian
kóryto
(cognate)
→
Upper Sorbian
korto
(cognate)
→
Polish
korytko
(affix)