Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Irish
salann
←
Proto-Celtic
*salanos
(inherited)
←
Proto-Celtic
*salenos
(mention)
←
Proto-Indo-European
*séh₂ls
(inherited)
←
Old Irish
salann
(inherited)
→
Breton
holen
(cognate)
→
Welsh
halen
(cognate)
→
Irish
foshalann
(affix)