Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Icelandic
Hróbjartur
←
German
Ruprecht
(cognate)
←
German
Robert
(cognate)
←
English
Robert
(cognate)
←
Spanish
Roberto
(cognate)
←
French
Robert
(cognate)
←
Proto-Germanic
*Hrōþiberhtaz
(inherited)
←
Icelandic
Róbert
(cognate)
←
Italian
Roberto
(cognate)
←
Old Norse
Hróbjartr
(inherited)
←
Old Norse
hró-
(affix)
←
Old Norse
bjartur
(affix)
←
Portuguese
Robert
(cognate)
→
Icelandic
Róbert
(doublet)