Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Ukrainian
вісімсот
←
Belarusian
восемсо́т
(cognate)
←
Polish
osiemset
(cognate)
←
Russian
восемьсо́т
(cognate)
←
Ukrainian
ві́сім
(affix)
←
Ukrainian
сот
(affix)