Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Welsh
tŵr
←
Welsh
twr
(mention)
←
English
tower
(borrowed)
←
French
tour
(borrowed)
→
English
tower
(cognate)
→
English
tor
(cognate)