Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Manx
shenndaalee
←
Irish
seandálaí
(cognate)
→
Irish
seandálaí
(cognate)
→
Manx
shenndaaleeagh
(affix)
→
Manx
shenndaaleeaght
(affix)