Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Manx
oanluck
←
Irish
adhlaic
(cognate)
←
Scottish Gaelic
adhlac
(cognate)
←
Middle Irish
adnaicid
(inherited)
←
Old Irish
ad·anaig
(inherited)
→
Manx
aa-oanluck
(prefix)