Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Proto-Slavic
*kosmъ
→
Upper Sorbian
kosma
(derived)
→
Macedonian
косма
(inherited)
→
Polish
kosmaty
(derived)
→
Polish
kosmyk
(derived)
→
Russian
косъм
(inherited(ru/bg))
→
Russian
космы
(inherited)