Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Plautdietsch
Oaw
←
English
erf
(cognate)
←
Proto-Germanic
*arbijô
(inherited)
←
Proto-Germanic
*arbiją
(derived)
←
Middle Low German
arve
(inherited)
←
Middle Low German
erve
(mention)
←
Middle Low German
ōr
(mention)
←
Old Saxon
*ervio
(inherited)