Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old Saxon
gras
←
Proto-Germanic
*grasą
(inherited)
←
Proto-West Germanic
*gras
(inherited)
←
Proto-Indo-European
*gʰreh₁-
(derived)
→
Old English
græs
(cognate)