Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Saterland Frisian
do
←
German
die
(cognate)
←
German
dann
(cognate)
←
West Frisian
de
(cognate)
←
West Frisian
dan
(cognate)
←
Proto-Germanic
*þan
(inherited)
←
Old Frisian
thā
(inherited)
→
English
tho
(cognate)