Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Sidamo
buna
←
Afar
buna
(cognate)
←
Amharic
ቡና
(borrowed)
←
Oromo
buna
(cognate)
→
Afar
buna
(cognate)
→
Oromo
buna
(cognate)