Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Icelandic
þó
←
Old Norse
þó
(derived)
→
English
though
(cognate)
→
Old English
þeah
(mention)
→
Luxembourgish
dach
(cognate)