Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old English
cyþþu
←
Proto-Germanic
*kunþiþō
(inherited)
←
Proto-Germanic
*kunþ-
(mention)
←
Old High German
chundida
(cognate)