Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old French
traïr
→
English
train
(mention)
→
English
betray
(derived)
→
Old French
traine
(mention)
→
Norman
trahi
(inherited)