Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Irish
troid
←
Proto-Germanic
*þrautą
(cognate)
←
Proto-Indo-European
*trewd-
(inherited)
←
Middle Irish
trot
(inherited)
←
Old Irish
troit
(inherited)