Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Irish
aontaigh
←
Scottish Gaelic
aontaich
(cognate)
←
Middle Irish
óentaigid
(inherited)
←
Old Irish
óentach
(inherited)
←
Old Irish
óen
(mention)
→
Irish
aontach
(affix)
→
Irish
aontaitheach
(affix)
→
Irish
aontaitheoir
(affix)
→
Irish
comhaontaigh
(prefix)
→
Scottish Gaelic
aontaich
(cognate)