Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old Norse
røkkr
←
Proto-Germanic
*rekwaz
(inherited)
←
Ancient Greek
Ἔρεβος
(cognate)
←
Proto-Indo-European
*h₁régʷos
(derived)
←
Sanskrit
रजस्
(cognate)
←
Old Armenian
երեկ
(cognate)
→
Ancient Greek
Ἔρεβος
(cognate)
→
Icelandic
rökkur
(derived)