Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Luxembourgish
richteg
←
German
richtig
(cognate)
←
Middle High German
rihtec
(inherited)
←
Old High German
rihtīg
(inherited)