Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Saterland Frisian
hälpe
←
English
help
(link)
←
Proto-Germanic
*helpaną
(inherited)
←
Old Frisian
helpa
(inherited)