Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Czech
postel
←
Proto-Slavic
*posteljь
(inherited)
←
Proto-Slavic
*posteljь
(inherited(cs/zlw-ocs))
←
Old Czech
postel
(inherited)
→
Serbo-Croatian
postelja
(cognate)
→
Slovene
postelja
(cognate)