Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Luxembourgish
eegen
←
Proto-Germanic
*aiganaz
(inherited)
←
Middle High German
eigen
(inherited)
←
Middle High German
(mention)
←
Old High German
eigan
(inherited)
←
Luxembourgish
iwwerzeegen
(mention)
→
Luxembourgish
Eegennumm
(compound)
→
Luxembourgish
iwwerzeegen
(mention)