Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Welsh
Saesneg
←
Welsh
Saeson
(suffix)
←
Welsh
-eg
(suffix)
←
Latin
saxonica
(borrowed)
←
Latin
saxonica lingua
(derived)
→
Irish
Sasanach
(cognate)