Etymology Latin acceleratus, past participle of accelerare; ad + celerare to hasten; celer quick. See celerity Transitive Verb Imperfect and past participle: accelerated Present participle: accelerating To cause to move faster; to quicken the motion of; to add to the speed of; -- opposed to retard To quicken the natural or ordinary progression or process of; as, to accelerate the growth of a plant, the increase of wealth, etc. To hasten, as the occurence of an event; as, to accelerate our departure Derived expressions Accelerated motion, (Mechanics): motion with a continually increasing velocity Accelerating force: the force which causes accelerated motion - Nichol Synonyms To hasten; expedite; quicken; dispatch; forward; advance; further Translations French: accélérer German: beschleunigen sich Indonesian: mempercepat Interlingua: accelerar Italian: accelerare Japanese: 加速 (かそく, kasoku), 加速化 (かそくか, kasoku-ka) Portuguese: acelerar Spanish: acelerar