Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Russian
восемна́дцать
→
Belarusian
васямнаццаць
(mention)
→
Russian
десяток
(link)
→
Russian
восемнадцатиугольник
(affix)
→
Russian
восемнадцатилетний
(affix)
→
Russian
восемнадцатилетие
(affix)