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