Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Saterland Frisian
sogen
←
German
sieben
(cognate)
←
West Frisian
sân
(cognate)
←
Proto-West Germanic
*sebun
(inherited)
←
Old Frisian
siugun
(inherited)