Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Russian
плошка
←
Old High German
flasca
(derived)
←
Old East Slavic
площка
(inherited)
←
Russian
пло́ский
(affix)
←
Russian
-ка
(affix)