Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Scottish Gaelic
eug
←
Proto-Celtic
*ankus
(inherited)
←
Irish
éag
(cognate)
←
Scottish Gaelic
bàsaich
(link)
←
Scottish Gaelic
caochail
(link)
←
Ancient Greek
νέκυς
(cognate)
←
Proto-Indo-European
*neḱ-
(root)
←
Proto-Indo-European
*neḱ-
(derived)
←
Latin
nex
(cognate)
←
Old Irish
éc
(inherited)
←
Old Irish
écaid
(inherited)
←
Middle Welsh
angheu
(cognate)
→
Irish
éag
(cognate)