Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Welsh
llyw
←
Proto-Celtic
*ɸlowyos
(derived)
←
English
float
(cognate)
←
Ancient Greek
πλόος
(cognate)
←
Proto-Indo-European
*plew-
(derived)
→
Welsh
llywodraeth
(mention)
→
Welsh
llywio
(affix)