Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Welsh
maen
←
Breton
maen
(cognate)
←
Proto-Brythonic
*maɣɨn
(inherited)
←
Proto-Celtic
*maginos
(inherited)
←
Welsh
maent
(link)
←
Cornish
men
(cognate)
←
Middle Welsh
maen
(inherited)
→
English
kistvaen
(mention)
→
Breton
maen
(cognate)
→
Welsh
bod
(mention)
→
Welsh
sylfaen
(compound)
→
Welsh
meini
(affix)
→
Welsh
calchfaen
(compound)
→
Welsh
conglfaen
(compound)
→
Welsh
ithfaen
(compound)
→
Welsh
gwenithfaen
(compound)
→
Welsh
llosgfaen
(compound)
→
Welsh
tywodfaen
(compound)
→
Welsh
gwyrddfaen
(compound)
→
Welsh
pic ar y maen
(compound)
→
Welsh
picen ar y maen
(compound)