Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
English
strath
←
Proto-Celtic
*stratos
(derived)
←
Scottish Gaelic
srath
(borrowed)
←
Proto-Indo-European
*sterh₃-
(root)
←
Proto-Indo-European
*sterh₃-
(derived)
←
Old Irish
srath
(derived)