Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Scottish Gaelic
fhathast
←
Irish
feasta
(cognate)
←
Middle Irish
fo-dechtsa
(inherited)
←
Old Irish
in fecht so
(derived)