Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Galician
nío
←
Proto-Indo-European
*nisdós
(inherited)
←
Proto-Italic
*nizdos
(inherited)
←
Latin
nīdus
(inherited)
→
Galician
niallo
(affix)