Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
English
tatch
←
English
techy
(mention)
←
French
tache
(derived)
→
Middle English
tach
(cognate)
→
Middle English
tach
(link)