Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old English
sul
←
Proto-Germanic
*sulhaz
(inherited)
←
Proto-Germanic
*sulhō
(mention)
←
Proto-Germanic
*sulhuz
(inherited)
←
Proto-Indo-European
*selk-
(derived)