Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Welsh
bynnag
←
Breton
bennak
(cognate)
←
Proto-Brythonic
*pɨnnag
(inherited)
←
Proto-Celtic
*kʷinnakos
(derived)
→
Welsh
ta
(link)
→
Welsh
ta
(link)
→
Welsh
ta
(link)
→
Welsh
ta
(link)
→
Welsh
fodd bynnag
(compound)