Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Russian
густо
←
Bulgarian
гъст
(cognate)
←
Macedonian
густ
(cognate)
←
Polish
gęsty
(cognate)
←
Serbo-Croatian
gust
(cognate)
←
Proto-Slavic
*gǫstъ
(inherited)