Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old Irish
étach
←
Latin
(mention)
←
Latin
(mention)
→
Irish
éadach
(inherited)
→
Scottish Gaelic
aodach
(inherited)
→
Manx
eaddagh
(inherited)