Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Luxembourgish
géint
←
German
gegen
(cognate)
←
Proto-Germanic
*gagin
(inherited)
←
Middle High German
gegen
(inherited)
←
Old High German
gagan
(inherited)
←
Icelandic
gegn
(cognate)
←
Dutch
tegen
(cognate)
→
Luxembourgish
Géigner
(mention)
→
Luxembourgish
Géigend
(suffix)
→
Luxembourgish
géinteneen
(compound)
→
Luxembourgish
dogéint
(compound)