Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
English
ensign
←
English
insignia
(doublet)
←
Middle English
ensigne
(inherited)
←
Old French
enseigne
(derived)
←
Proto-Indo-European
*sek-
(root)
←
Proto-Indo-European
*sekʷ-
(root)
←
Latin
īnsignia
(derived)
←
Latin
īnsigne
(mention)
→
English
cornet
(mention)
→
English
flag
(link)
→
English
ancient
(mention)
→
English
insignia
(doublet)
→
English
ensigncy
(suffix)
→
English
ensignship
(suffix)