Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Welsh
fflwcs
←
Welsh
fflocs
(mention)
←
Welsh
ffloc
(affix)
←
Welsh
-s
(affix)
←
English
flock
(borrowed)