Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old English
oht
←
Proto-Germanic
*anhtō
(inherited)
←
Proto-Indo-European
*ank-
(derived)
←
Proto-Indo-European
*anḱ-
(mention)