English edit

Etymology edit

First attested in the 1520s. Either from Latin accelerātus, perfect passive participle of accelerō (I accelerate, hasten), formed from ad + celerō (I hasten), which is from celer (quick) (see celerity), or back-formation from acceleration.[1]

Pronunciation edit

  • (Received Pronunciation) IPA(key): /ək.ˈsɛl.ə.ˌɹeɪt/, /æk.ˈsɛl.ə.ˌɹeɪt/, /ɪk.ˈsɛl.ə.ˌɹeɪt/
  • (file)

Verb edit

accelerate (third-person singular simple present accelerates, present participle accelerating, simple past and past participle accelerated)

  1. (transitive) To cause to move faster; to quicken the motion of; to add to the speed of.
  2. (transitive) To quicken the natural or ordinary progression or process of.
    to accelerate the growth of a plant, the increase of wealth, etc.
  3. (transitive, physics) To cause a change of velocity.
  4. (transitive) To hasten, as the occurrence of an event.
    to accelerate our departure
  5. (transitive, education) To enable a student to finish a course of study in less than normal time.
  6. (intransitive) To become faster; to begin to move more quickly.
  7. (intransitive) Grow; increase.

Synonyms edit

Antonyms edit

Derived terms edit

Related terms edit

Translations edit

The translations below need to be checked and inserted above into the appropriate translation tables. See instructions at Wiktionary:Entry layout § Translations.

Adjective edit

accelerate (not comparable)

  1. (archaic) Accelerated; quickened; hastened; hurried.
    • 1662, Thomas Salusbury, Galileo's Dialogue Concerning the Two Chief World Systems, Dialogue 2:
      ... a general knowledg of the definition of motion, and of the distinction of natural and violent, even and accelerate, and the like, sufficing.

References edit

  1. ^ Elliott K. Dobbie, C. William Dunmore, Robert K. Barnhart, et al. (editors), Chambers Dictionary of Etymology (Chambers Harrap Publishers Ltd, 2004 [1998], →ISBN), page 6

Italian edit

Etymology 1 edit

Adjective edit

accelerate f pl

  1. feminine plural of accelerato

Participle edit

accelerate f pl

  1. feminine plural of accelerato

Etymology 2 edit

Verb edit


  1. inflection of accelerare:
    1. second-person plural present indicative
    2. second-person plural imperative

Latin edit

Verb edit


  1. second-person plural present active imperative of accelerō