Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Irish
-ibh
←
Proto-Celtic
*-ābis
(inherited)
←
Proto-Celtic
*-obis
(mention)
←
Proto-Celtic
*-ibis
(mention)
←
Proto-Celtic
*-ubis
(mention)
←
Old Irish
-ib
(inherited)
→
Irish
mnáibh
(compound)