Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Bulgarian
тресавище
←
Polish
trzęsawisko
(cognate)
←
Russian
тряси́на
(cognate)
←
Serbo-Croatian
тре̏сава
(cognate)
←
Proto-Slavic
*tręsavišče
(inherited)
←
Ukrainian
тряса́вина
(cognate)
→
Polish
trzęsawisko
(cognate)