Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
French
truand
←
Welsh
tru
(cognate)
←
English
truant
(cognate)
←
Irish
trogán
(cognate)
→
French
truander
(suffix)