Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Scottish Gaelic
againn
←
Middle Irish
[[ocainn]], [[acainn]], [[ocaind]]
(inherited)
←
Old Irish
ocunn
(inherited)
→
Scottish Gaelic
againne
(mention)