Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Scottish Gaelic
dooisht
←
Middle Irish
dúiscid
(inherited(gd/gv))
←
Old Irish
do·díuschi
(inherited(gd/gv))