Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Proto-Slavic
*tǫgъ
→
Belarusian
тугі
(inherited)
→
Czech
tuhý
(inherited)
→
Russian
тугой
(inherited)
→
Slovene
tog
(inherited)
→
Silesian
tyngi
(inherited)
→
Ukrainian
тугий
(inherited)