Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Luxembourgish
soen
←
German
sagen
(cognate)
←
English
say
(cognate)
←
Proto-Germanic
*sagjaną
(derived)
←
Old High German
sagēn
(derived)
←
Icelandic
segja
(cognate)
←
Dutch
zeggen
(cognate)