Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Luxembourgish
ëm
←
German
um
(cognate)
←
English
umbe
(cognate)
←
Proto-Germanic
*umbi
(inherited)
←
Middle High German
ümbe
(inherited)
←
Old High German
umbi
(inherited)
←
Icelandic
um
(cognate)
←
Dutch
om
(cognate)
→
German
um
(cognate)
→
Luxembourgish
Ëmwelt
(compound)
→
Luxembourgish
ëmstellen
(prefix)
→
Luxembourgish
ëmschreiwen
(prefix)
→
Luxembourgish
ëm-
(mention)