Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Afar
saga
←
Iraqw
slee
(cognate)
←
Oromo
saʼa
(cognate)
←
Sidamo
saa
(cognate)
←
Somali
sác
(cognate)
←
Saho
saga
(cognate)
→
Somali
sac
(cognate)