Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Proto-Slavic
*klopotъ
→
Czech
klopot
(inherited)
→
Kashubian
kłopòt
(inherited)
→
Polish
kłopot
(inherited)
→
Romanian
clopot
(mention)