Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Luxembourgish
entfléien
←
Proto-Indo-European
*plewk-
(root)
←
Luxembourgish
ent
(affix)
←
Luxembourgish
fléien
(affix)