Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Irish
allta
←
Scottish Gaelic
allaidh
(cognate)
←
Old Irish
allaid
(inherited)
←
Old Irish
allta
(mention)
→
Irish
alltacht
(suffix)
→
Irish
alltán
(affix)
→
Irish
alltathír
(affix)
→
Manx
oaldey
(cognate)