Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Welsh
had
←
Proto-Celtic
*sato-
(inherited)
←
English
seed
(cognate)
←
Proto-Indo-European
*sh₁-tó-
(inherited)
←
Proto-Indo-European
*seh₁-
(mention)
→
Welsh
hadu
(mention)