Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Manx
eeck
←
Irish
íoc
(cognate)
←
Scottish Gaelic
ìoc
(cognate)
←
Old Irish
ícc
(inherited)
←
Old Irish
íccaid
(inherited)
→
Scottish Gaelic
ìoc
(cognate)
→
Manx
neueeck
(prefix)
→
Manx
aa-eeck
(prefix)