Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Manx
çheer
←
Proto-Celtic
*tīros
(inherited)
←
Proto-Indo-European
*ters-
(derived)
←
Old Irish
tír
(inherited)
→
Manx
yl-çheeragh
(affix)
→
Manx
co-heeragh
(affix)
→
Manx
mooarheeragh
(affix)