Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Irish
éist
←
Old Irish
[[éistid]], [[éitsid]]
(inherited)
→
Irish
éisteolaíocht
(affix)
→
Manx
eaisht
(cognate)