Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Czech
pátek
←
Czech
pátý
(suffix)
←
Czech
ek
(suffix)
←
Proto-Slavic
*pętъkъ
(inherited)
→
Czech
páteční
(suffix)