Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Scottish Gaelic
do-
←
Old Irish
do-
(inherited)
←
Old Irish
du-
(mention)
→
Scottish Gaelic
do-thuigsinneach
(affix)