Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Saterland Frisian
Hälpe
←
English
help
(cognate)
←
Proto-Germanic
*helpō
(inherited)
←
Old Frisian
helpe
(inherited)
→
English
help
(cognate)
→
Saterland Frisian
hälploos
(suffix)
→
Saterland Frisian
Hälper
(affix)