Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Irish
Í
←
Proto-Celtic
*īwos
(derived)
←
Welsh
yw
(cognate)
←
Proto-Indo-European
*h₁eyHweh₂
(derived)
←
Old Irish
eó
(cognate)
→
English
Athy
(mention)