Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Portuguese
lutar
←
Catalan
lluitar
(cognate)
←
Spanish
luchar
(cognate)
←
French
lutter
(cognate)
←
Galician
loitar
(cognate)
←
Proto-Indo-European
*lugsos
(derived)
←
Proto-Indo-European
*lewg-
(mention)
←
Proto-Indo-European
*leug
(mention)
←
Italian
lottare
(cognate)
←
Latin
luctārī
(inherited)
←
Latin
luctor
(mention)
←
Occitan
luchar
(cognate)
←
Romanian
lupta
(cognate)
←
Old Portuguese
luitar
(inherited)
→
Spanish
luchar
(cognate)
→
French
lutter
(cognate)
→
Galician
loitar
(cognate)
→
Occitan
luchar
(cognate)
→
Guinea-Bissau Creole
luta
(derived)
→
Portuguese
lutador
(affix)