Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Rwanda-Rundi
imari
←
Swahili
mali
(borrowed)
→
Northern Ndebele
imali
(cognate)
→
Swazi
imali
(cognate)
→
Xhosa
imali
(cognate)
→
Zulu
imali
(cognate)