Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Irish
eachaire
←
Irish
each
(mention)
←
Old Irish
echaire
(inherited)
←
Old Irish
ech
(mention)
→
Irish
eachaí
(link)