Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Irish
seanmóir
←
Scottish Gaelic
searmon
(cognate)
←
Manx
sharmane
(cognate)
←
Latin
sermō
(derived)
←
Middle Irish
sermóin
(inherited)
→
Irish
seanmóirí
(affix)
→
Scottish Gaelic
searmon
(cognate)
→
Manx
sharmane
(cognate)