Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Welsh
bryn
→
English
Bryn
(derived)
→
English
Brynamman
(derived)
→
Welsh
bryngaer
(compound)
→
Welsh
bryniau
(affix)