Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Russian
луна
←
Proto-Indo-European
*lewk-
(root)
←
Old East Slavic
луна
(inherited)
←
Proto-Slavic
*luna
(inherited)