Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Irish
nod
←
Irish
nóta
(doublet)
←
Latin
nota
(derived)
←
Old Irish
not
(inherited)
→
Irish
nóta
(doublet)
→
Cornish
nos
(cognate)