Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Luxembourgish
Knuet
←
German
Knoten
(cognate)
←
English
knot
(cognate)
←
Old High German
knoto
(inherited)
←
Dutch
knot
(cognate)