Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Scottish Gaelic
gràdh
←
Proto-Celtic
*gʷrādus
(inherited)
←
Old Irish
grád
(inherited)
→
Scottish Gaelic
gràdhach
(affix)
→
Scottish Gaelic
gràdhaich
(affix)