Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Belarusian
аднашлю́бны
→
Belarusian
аднашлюбнасць
(affix)
→
Ukrainian
одношлюбний
(cognate)