Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
English
Powell
←
Welsh
[[ap]] [[Hywel]]
(borrowed)
←
English
Howell
(doublet)
←
English
Paul
(mention)
→
English
Powellian
(suffix)
→
English
Powles
(mention)
→
English
powellize
(suffix)
→
English
Powellism
(suffix)
→
English
Powellist
(suffix)
→
English
Powellite
(suffix)