Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Irish
ifreann
←
Welsh
uffern
(cognate)
←
Latin
īnfernus
(derived)
←
Old Irish
ifernn
(inherited)
→
English
Heffernan
(mention)