Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Polish
arkana
←
Latin
arcāna
(borrowed)
←
Latin
arcānus
(mention)
←
Latin
arceo
(mention)
←
Latin
arca
(mention)