Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Luxembourgish
Plou
←
German
Pflug
(cognate)
←
English
plough
(cognate)
←
Proto-Germanic
*plōgaz
(inherited)
←
Old High German
pluog
(inherited)
←
Old High German
plōh
(mention)
←
Old High German
phluog
(mention)
←
Icelandic
plógur
(cognate)
←
Luxembourgish
(mention)
←
Luxembourgish
plouen
(mention)
←
Luxembourgish
(mention)
←
Dutch
ploeg
(cognate)
→
Luxembourgish
Schnéiplou
(compound)