Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Luxembourgish
nécken
←
Danish
nikke
(cognate)
←
German
nicken
(cognate)
←
Old High German
nikken
(inherited)
←
Norwegian
nikke
(cognate)
←
Swedish
nicka
(cognate)