From Latin inflammare ‘to set on fire’ + the suffix -able via English inflammable. The in- prefix is dropped to avoid confusion with non-flammable, as in many English words of Latin origin (but not this word) the prefix "in-" and similar means "not".
- Capable of burning, especially a liquid.
- Easily set on fire.
- Subject to easy ignition and rapid flaming combustion.
flammable (plural flammables)
- Any flammable substance.