Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
English
behelp
←
German
behelfen
(cognate)
←
English
be
(prefix)
←
English
help
(prefix)
←
West Frisian
beholpje
(cognate)
←
Dutch
behelpen
(cognate)
←
Scots
behelpe
(cognate)
→
German
behelfen
(cognate)