Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Proto-Slavic
*luska
→
Polish
łuska
(inherited)
→
Serbo-Croatian
ljuska
(inherited)
→
Slovene
luska
(inherited)
→
Ukrainian
луска
(inherited)