Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Russian
ржа
←
Proto-Indo-European
*h₁rewdʰ-
(root)
←
Old East Slavic
ръжа
(inherited)
←
Proto-Slavic
*rъďa
(inherited)
→
Lower Sorbian
rza
(cognate)
→
Russian
ржавый
(affix)