Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Scottish Gaelic
bliadhna
←
Proto-Celtic
*blēdanī
(inherited)
←
Old Irish
blíadain
(inherited)
→
Scottish Gaelic
bliadhnail
(affix)