Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
English
cavum
←
English
cave
(doublet)
←
Proto-Indo-European
*ḱewh₁-
(root)
←
Latin
cavum
(unadapted borrowing)