Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Serbo-Croatian
локва
←
Proto-Indo-European
*lokus
(derived)
←
Proto-Slavic
*loky
(inherited)
→
Serbo-Croatian
локвањ
(mention)