Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Scottish Gaelic
luach
←
Proto-Celtic
*lowgos
(inherited)
←
Proto-Indo-European
*leh₂w-
(derived)
←
Middle Irish
luach
(inherited)
←
Old Irish
lóg
(inherited)
→
Scottish Gaelic
luachmhor
(affix)