Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Welsh
cyhyd
←
Welsh
cy
(prefix)
←
Welsh
hyd
(prefix)
→
Welsh
cyhydnos
(compound)
→
Pictish
ᚉᚒᚆᚓᚈᚈ
(cognate)