Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
English
portend
←
Proto-Indo-European
*tend-
(root)
←
Latin
portendere
(borrowed)
←
Latin
por-
(mention)
←
Latin
tendere
(mention)
←
Latin
tendo
(mention)
→
English
portendeth
(suffix)
→
English
portender
(suffix)
→
Portuguese
portento
(cognate)