Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Proto-West Germanic
*helpārī
→
English
helper
(inherited)
→
German Low German
Helper
(inherited)
→
Saterland Frisian
Hälper
(inherited)