Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Luxembourgish
erëm
←
German
herum
(cognate)
←
German
wieder
(mention)
←
German
wiederum
(mention)
←
English
again
(mention)
←
Middle High German
her ümbe
(inherited)
←
Dutch
erom
(cognate)
←
Dutch
wederom
(mention)
→
Luxembourgish
ronderëm
(affix)