Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Scottish Gaelic
tòrr
←
Welsh
twr
(cognate)
→
English
tor
(cognate)
→
Welsh
twr
(cognate)
→
Irish
tor
(cognate)