Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
North Frisian
twasche
←
German
zwischen
(cognate)
←
English
betwixt
(cognate)
←
West Frisian
tusken
(cognate)
←
Old Frisian
twisk
(derived)