Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Proto-Indo-European
*lenk-
→
Lithuanian
lankas
(derived)
→
Lithuanian
linksmas
(derived)
→
Latgalian
lūgs
(derived)
→
Latvian
logs
(mention)