Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old Saxon
rekkian
←
Proto-Germanic
*rakjaną
(inherited)
←
Proto-West Germanic
*rakkjan
(inherited)
←
Proto-Indo-European
*h₃roǵéyeti
(inherited)
→
Old English
reccan
(cognate)