Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old Welsh
lau
←
Proto-Brythonic
*llọβ̃
(inherited)
←
Proto-Celtic
*ɸlāmā
(inherited)
←
Proto-Indo-European
*pl̥h₂meh₂
(inherited)
→
Welsh
llaw
(inherited)