accelerate

English dictionary entry

Meanings

verb
  1. To cause to move faster; to quicken the motion of; to add to the speed of.
  2. To quicken the natural or ordinary progression or process of.
  3. To cause a change of velocity.
  4. To hasten, as the occurrence of an event.
  5. To enable a student to finish a course of study in less than normal time.
  6. To become faster; to begin to move more quickly.
  7. Grow; increase.
adj
  1. Accelerated; quickened; hastened; hurried.

Pronunciation

/əkˈsɛl.əˌɹeɪt/ /ækˈsɛl.əˌɹeɪt/ /ɪkˈsɛl.əˌɹeɪt/ en-us-accelerate.ogg

Word forms

accelerate accelerates accelerating accelerated

Etymology

Etymology tree Proto-Indo-European *h₂éd Proto-Italic *ad Proto-Italic *ad- Latin ad- Proto-Indo-European *kel-der. Latin celer Proto-Indo-European *-h₂ Proto-Indo-European *-éh₂ Proto-Indo-European *-yéti Proto-Indo-European *-eh₂yéti Proto-Italic *-āō Latin -ō Latin celerō Latin accelerō Latin accelerātuslbor. ▲ Latin accelerō Proto-Indo-European *-tis Proto-Indo-European *-Hō Proto-Indo-European *-tiHō Proto-Italic *-tiō Latin -tiō Latin accelerātiōder. English accelerationbf. English accelerate First attested in the 1520s. Either from Latin accelerātus, perfect passive participle of accelerō (“to accelerate, hasten”) (see -ate (verb-forming suffix) and -ate (adjective-forming suffix)), formed from ad + celerō (“to hasten”), which is from celer (“quick”) (see celerity), or back-formation from acceleration.

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