Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
North Frisian
üs
←
English
us
(cognate)
←
West Frisian
ús
(cognate)
←
Proto-Germanic
*uns
(inherited)
←
Proto-Indo-European
*n̥smé
(inherited)
←
Old Frisian
ūs
(inherited)