Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Welsh
tân
←
Breton
tan
(cognate)
←
Proto-Celtic
*teɸnets
(inherited)
←
Proto-Indo-European
*tep-
(root)
←
Proto-Indo-European
*tep-
(derived)
←
Cornish
-
(cognate)
←
Old Irish
teine
(cognate)
→
Breton
tan
(cognate)
→
Welsh
allanfa dân
(mention)
→
Welsh
tanau
(affix)
→
Welsh
trydan
(affix)
→
Welsh
tanwydd
(affix)
→
Welsh
tân gwyllt
(compound)
→
Scottish Gaelic
teine
(mention)
→
Manx
çhenney
(mention)
→
Cornish
tan
(cognate)
→
Old Irish
teine
(cognate)