Meaning

noun an explosive device fused to explode under specific conditions

noun strong sealed vessel for measuring heat of combustion

noun an event that fails badly or is totally ineffectual

originFrom French bombe, from Italian bomba, from Latin bombus (“a booming sound”), from Ancient Greek βόμβος (bómbos, “booming, humming, buzzing”), imitative of the sound itself. Doublet of bombe. Compare boom.

Etymology from Wiktionary, CC BY-SA 3.0