Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Romanian
pitac
←
Bulgarian
петак
(mention)
←
Ancient Greek
πιττάκιον
(mention)
←
Serbo-Croatian
petak
(mention)
←
Proto-Slavic
*pitakъ
(mention)