Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Russian
касаться
←
Old East Slavic
касатисѧ
(inherited)
←
Proto-Slavic
*kasati
(inherited)
←
Proto-Slavic
*sę
(mention)