Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Manx
tayrn
←
Middle Irish
tarngid
(inherited)
←
Old Irish
do·srenga
(inherited)
→
Manx
ym-hayrn
(prefix)