Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Welsh
-eg
→
Breton
-eg
(cognate)
→
Welsh
dueg
(affix)
→
Welsh
Cymraeg
(affix)
→
Welsh
Cymreig
(suffix)
→
Welsh
Saesneg
(suffix)
→
Welsh
mathemateg
(affix)
→
Welsh
Llydaweg
(affix)
→
Welsh
Eidaleg
(affix)
→
Welsh
cyfrifeg
(affix)
→
Welsh
peirianneg
(affix)
→
Welsh
troseddeg
(affix)
→
Welsh
seineg
(affix)
→
Welsh
meteleg
(affix)
→
Welsh
adareg
(affix)
→
Welsh
adweitheg
(affix)
→
Welsh
economeg
(link)
→
Welsh
daeareg
(affix)
→
Welsh
Fietnameg
(suffix)
→
Welsh
Gwyddeleg
(affix)