Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Bulgarian
клен
←
Proto-Slavic
*klenъ
(inherited)
←
Proto-Slavic
*klěnь
(inherited)
←
Proto-Slavic
*klenъ
(inherited(bg/uk))