Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Welsh
coch
←
Proto-Brythonic
*kox
(inherited)
←
Ancient Greek
κόκκος
(derived)
←
Cornish
kogh
(cognate)
←
Latin
coccum
(derived)
←
Middle Welsh
coch
(inherited)
→
English
torgoch
(mention)
→
English
Gough
(mention)
→
Welsh
Llanfairpwllgwyngyllgogerychwyrndrobwllllantysiliogogogoch
(mention)
→
Welsh
cochen
(affix)
→
Welsh
cochyn
(affix)
→
Welsh
melyngoch
(compound)
→
Welsh
glasgoch
(affix)
→
Welsh
Goch
(mention)
→
Welsh
buwch goch gota
(affix)
→
Welsh
rhytgoch
(compound)
→
Welsh
cochlas
(affix)
→
Welsh
picwns coch
(compound)
→
Welsh
sos coch
(compound)
→
Welsh
cochwys
(compound)
→
Cornish
kogh
(cognate)