Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Luxembourgish
Sitt
←
Danish
sæd
(cognate)
←
German
Sitte
(cognate)
←
Proto-Germanic
*siduz
(derived)
←
Old High German
situ
(derived)
←
Icelandic
siður
(cognate)
←
Dutch
zede
(cognate)
←
Norwegian
sed
(cognate)