Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Proto-Slavic
*tęžiti
→
Bulgarian
тежа
(cognate)
→
Czech
těžit
(inherited)
→
Macedonian
тежина
(mention)
→
Polish
ciążyć
(inherited)
→
Serbo-Croatian
težiti
(inherited)