Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
English
McCrum
←
Scottish Gaelic
mac
(mention)
←
Scottish Gaelic
Cruim
(mention)
←
Scottish Gaelic
crom
(mention)
→
English
Crum
(mention)