Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Luxembourgish
Daach
←
German
Dach
(cognate)
←
English
thack
(cognate)
←
English
thatch
(mention)
←
Proto-Germanic
*þaką
(inherited)
←
Old High German
dah
(inherited)
←
Icelandic
þak
(cognate)
←
Dutch
dak
(cognate)
→
Luxembourgish
Daachliicht
(compound)
→
Luxembourgish
Ënnerdaach
(compound)
→
Luxembourgish
Daachzill
(compound)