Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Scottish Gaelic
caraid
←
Proto-Celtic
*karants
(inherited)
←
English
charity
(cognate)
←
English
whore
(mention)
←
Irish
cara
(cognate)
←
Manx
carrey
(cognate)
←
Proto-Indo-European
*keh₂-
(root)
←
Proto-Indo-European
*kéh₂ros
(inherited)
←
Latin
cārus
(cognate)
←
Middle Irish
cara
(inherited)
←
Old Irish
carae
(inherited)
→
Irish
cara
(cognate)
→
Scottish Gaelic
càirdeach
(affix)
→
Scottish Gaelic
càirdeil
(affix)
→
Manx
carrey
(cognate)