Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Welsh
bath
←
Proto-Celtic
*batto-
(derived)
←
Welsh
bathdy
(link)
←
Welsh
bathol
(link)
←
Welsh
bathu
(link)
←
Latin
battuo
(cognate)
→
Welsh
math
(mention)
→
Welsh
bathdy
(compound)