Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Luxembourgish
kënnen
←
German
können
(cognate)
←
English
can
(cognate)
←
Proto-Germanic
*kunnaną
(inherited)
←
Middle High German
kunnen
(inherited)
←
Proto-West Germanic
*kunnan
(inherited)
←
Old High German
kunnan
(inherited)
←
Proto-Indo-European
*ǵneh₃-
(root)
←
Icelandic
kunna
(cognate)
←
Dutch
kunnen
(cognate)
→
Luxembourgish
kënnt
(mention)