Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Manx
riaght
←
Irish
ríocht
(cognate)
←
Scottish Gaelic
rìoghachd
(cognate)
←
Middle Irish
rígdacht
(inherited)
→
Manx
reeriaght
(compound)
→
Manx
sheer-riaght
(prefix)