Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Irish
fiacháil
←
Irish
féach
(mention)
←
Scottish Gaelic
feuchail
(borrowed)
←
Middle Irish
fégaid
(derived)
←
Middle Irish
féchaid
(mention)