Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
English
methera
←
Welsh
mhedwerydd
(cognate)
←
Welsh
pedwerydd
(mention)
→
English
methera-bumfit
(mention)
→
English
mether
(link)