Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old Church Slavonic
млъньи
←
Proto-Balto-Slavic
*mild-n-
(derived)
←
Proto-Indo-European
*mldʰ-n-
(derived)
←
Proto-Slavic
*mъldni
(inherited)