Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Manx
keird-chummyn
←
Irish
ceardchumann
(cognate)
←
Manx
keird
(affix)
←
Manx
commyn
(affix)
→
Irish
ceardchumann
(cognate)
→
Manx
keird-chummynys
(affix)
→
Manx
keirdchummynagh
(affix)
→
Manx
neucheirdchummynagh
(affix)