Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Scottish Gaelic
Gall
←
Proto-Celtic
*gallos
(cognate)
←
Welsh
gal
(cognate)
←
Latin
Gallus
(derived)
←
Old Irish
gall
(inherited)
→
Irish
gall
(cognate)
→
Scottish Gaelic
Rìgh Innse Gall
(mention)