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