Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
North Frisian
di
←
North Frisian
jü
(link)
←
North Frisian
dåt
(link)
←
North Frisian
da
(link)
←
North Frisian
dit
(link)
←
North Frisian
dü
(link)
←
Proto-Germanic
*sa
(inherited)
←
Proto-Indo-European
*só
(inherited)
←
Old Frisian
thī
(inherited)