Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old Irish
damán allaid
←
Old Irish
damán
(affix)
←
Old Irish
allaid
(affix)
→
Scottish Gaelic
damhan-allaidh
(inherited)
→
Scottish Gaelic
damhán alla
(inherited(gd/ga))
→
Manx
doo-oallee
(inherited)