Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Luxembourgish
Längt
←
English
length
(cognate)
←
Proto-Germanic
*langiþō
(inherited)
←
Middle High German
lengede
(inherited)
←
Old High German
*lengida
(inherited)