Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old French
sis
←
Proto-Indo-European
*swéḱs
(inherited)
←
Latin
sex
(inherited)
→
English
at sixes and sevens
(mention)
→
English
sice
(derived)
→
French
six
(inherited)
→
Middle French
six
(inherited)
→
Walloon
shijh
(inherited)