Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Irish
arm
←
Latin
arma
(derived)
←
Old Irish
arm
(inherited)
→
Irish
aerarm
(affix)
→
Irish
armadóir
(affix)
→
Irish
armlón
(affix)
→
Irish
armáil
(affix)