Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
English
rach
←
Old English
ræċċ
(inherited)
←
Middle English
rache
(inherited)
←
Middle English
racche
(mention)
←
Middle English
rachche
(mention)
→
Old Norse
rakki
(cognate)