Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Welsh
maneg
←
Breton
maneg
(cognate)
←
Irish
muinchille
(cognate)
←
Cornish
manek
(cognate)
←
Latin
manica
(borrowed)
→
Breton
maneg
(cognate)