Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Esperanto
klara
←
German
klar
(derived)
←
English
clear
(derived)
←
English
clarity
(mention)
←
Spanish
claro
(derived)
←
French
clair
(derived)
←
Italian
chiaro
(derived)
←
Latin
clārus
(derived)
←
Portuguese
claro
(derived)
→
Esperanto
klarigi
(affix)
→
Esperanto
malklara
(affix)
→
Esperanto
klariĝi
(affix)
→
Ido
klara
(derived)