Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Manx
cha
←
Irish
ní
(cognate)
←
Irish
cha
(mention)
←
Scottish Gaelic
cha
(cognate)
←
Manx
chan
(mention)
←
Middle Irish
nícon
(derived)
←
Old Irish
nocon
(mention)
←
Old Irish
nochon
(mention)
←
Old Irish
nochon
(mention)
←
Old Irish
nícon
(inherited)
←
Old Irish
nacon
(mention)
←
Old Irish
[[ní]] [[con]]
(mention)