Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Xhosa
buya
←
Venda
vhuya
(cognate)
←
Zulu
buya
(cognate)
→
Xhosa
buyisa
(affix)
→
Xhosa
buyela
(affix)