Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Latvian
bārs
→
Livonian
bōr
(derived)
→
Latvian
bārenis
(suffix)
→
Latvian
bāris
(mention)