English
fightable
From fight + -able.
Formed from fight + -able
Proto-Indo-European *peḱ- ‘to comb’
Proto-Germanic *fehtaną ‘to comb’
Proto-West Germanic *fehtan ‘to fight’
Old English feohtan ‘to fight’
Middle English fighten ‘to fight’
English fight
Today it means
adj Able to be fought.
Language periods are conventional ranges, not dates for this word.
Etymograph / fightable