Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old East Slavic
порохъ
←
Proto-Indo-European
*pers-
(derived)
←
Proto-Slavic
*porxъ
(inherited)
→
Russian
порох
(inherited)
→
Ukrainian
порох
(inherited)