Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Welsh
de
←
Breton
dehou
(cognate)
←
Proto-Celtic
*dexsos
(inherited)
←
Welsh
deau
(mention)
←
Welsh
D
(link)
←
Welsh
Môr y De
(link)
←
Welsh
Pegwn y De
(link)
←
Welsh
y
(link)
←
Welsh
de-ddwyrain
(link)
←
Welsh
de-orllewin
(link)
←
Welsh
gogledd
(link)
←
Welsh
chwith
(link)
←
Welsh
te
(mention)
←
English
Wales
(link)
←
Irish
deas
(cognate)
←
Scottish Gaelic
deas
(cognate)
←
Manx
jiass
(cognate)
←
Cornish
dyhow
(cognate)
→
Welsh
dde
(mention)
→
Welsh
deheuig
(affix)
→
Welsh
de-ddwyrain
(compound)
→
Welsh
de-orllewin
(compound)
→
Welsh
de-glicio
(compound)
→
Cornish
dyghow
(cognate)