motive — something that causes a person to act in a certain way, do a certain thing, etc.; incentive.
Three-syllable rhymes
exploding — Burst or shatter violently and noisily as a result of rapid combustion, decomposition, excessive internal pressure, or other process, typically scattering fragments widely.
explosive — Able or likely to shatter violently or burst apart, as when a bomb explodes.
hypnosis — an artificially induced trance state resembling sleep, characterized by heightened susceptibility to suggestion.