Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Proto-West Germanic
*an
→
West Frisian
oan
(inherited)
→
Old Frisian
on
(inherited)
→
Saterland Frisian
an
(inherited)
→
Yiddish
אָן
(inherited)