Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Manx
lheeah
←
Breton
loued
(cognate)
←
Proto-Celtic
*ɸlētos
(inherited)
←
Welsh
llwyd
(cognate)
←
English
fallow
(cognate)
←
Proto-Indo-European
*pelH-
(derived)
←
Cornish
loys
(cognate)
←
Old Irish
líath
(inherited)
→
Manx
breck-lheeah
(compound)