Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Czech
stoh
←
Proto-Slavic
*stogъ
(inherited)
→
Lower Sorbian
stog
(cognate)
→
Upper Sorbian
stóh
(cognate)