Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Proto-Slavic
*povětrъ
→
Czech
povětří
(inherited)
→
Lower Sorbian
pówětš
(derived)
→
Upper Sorbian
powětr
(inherited)
→
Polish
powietrze
(inherited)