Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Saterland Frisian
fääst
←
German
fest
(cognate)
←
West Frisian
fêst
(cognate)
←
Proto-West Germanic
*fast
(inherited)
←
Old Frisian
fest
(inherited)