Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old East Slavic
тънъкъ
→
Russian
тонкий
(inherited)
→
Rusyn
тонкый
(inherited)
→
Ukrainian
тонкий
(inherited)