Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Lithuanian
alkūnė
←
Proto-Indo-European
*Heh₃l-
(root)
←
Latvian
elkonis
(cognate)
→
Latvian
elkonis
(cognate)