Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Welsh
glud
←
Irish
glae
(cognate)
←
Latin
glūten
(borrowed)
←
Old Welsh
glut
(inherited)
←
Old Irish
gláed
(cognate)
←
Middle Breton
glut
(cognate)
→
Irish
gliú
(cognate)
→
Irish
glae
(cognate)
→
Scottish Gaelic
glaodh
(cognate)