Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Czech
lahodný
←
Proto-Slavic
*lagodьnъ
(inherited)
←
Old Czech
lahodný
(inherited)
→
Polish
łagodny
(cognate)
→
Serbo-Croatian
lagodan
(cognate)
→
Serbo-Croatian
лагодан
(cognate)