Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Luxembourgish
Häerz
←
German
Herz
(cognate)
←
English
heart
(cognate)
←
Proto-Germanic
*hertô
(inherited)
←
Middle High German
herz
(inherited)
←
Old High German
herza
(inherited)
←
Icelandic
hjarta
(cognate)
←
Dutch
hart
(cognate)
←
Swedish
hjärta
(cognate)
→
Luxembourgish
häerzeg
(suffix)