Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Welsh
gobaith
←
Welsh
affaith
(mention)
←
Latin
affectus
(derived)
←
Latin
defectus
(mention)
→
Welsh
paith
(mention)
→
Welsh
gobeithio
(suffix)
→
Welsh
anobaith
(affix)
→
Welsh
gobeithiol
(affix)
→
Welsh
diobaith
(affix)
→
Latin
Pictus
(cognate)