Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
English
calumny
←
English
challenge
(doublet)
←
Middle English
calumnīe
(inherited)
←
French
calomnie
(cognate)
←
French
calomnier
(derived)
←
Old French
calomnie
(derived)
←
Proto-Indo-European
*ḱelh₁-
(root)
←
Proto-Indo-European
*ḱelh₁-
(derived)
←
Proto-Indo-European
*ḱh₂l-
(mention)
←
Latin
calumnia
(derived)
←
Latin
calvor
(mention)
←
Latin
calumpniārī
(derived)
←
Latin
calumniārī
(mention)
←
Latin
calumnior
(mention)
←
Latin
calumnia
(mention)
←
Latin
-or
(mention)
→
English
challenge
(doublet)