Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Gothic
ππΉπ²π½
β
Proto-Germanic
*regnΔ
(inherited)
β
Gothic
ππΉπ²π½πΎπ°π½
(affix)
β
Old Norse
regn
(cognate)