Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Scottish Gaelic
sùith
←
Welsh
huddygl
(cognate)
←
Old Irish
súith
(inherited)
→
Scottish Gaelic
sùitheach
(affix)