verb (used with object), ac·cel·er·at·ed, ac·cel·er·at·ing.
to cause faster or greater activity, development, progress, advancement, etc., in: to accelerate economic growth.
to hasten the occurrence of: to accelerate the fall of a government.
Mechanics. to change the velocity of (a body) or the rate of (motion); cause to undergo acceleration.
to reduce the time required for (a course of study) by intensifying the work, eliminating detail, etc.
verb (used without object), ac·cel·er·at·ed, ac·cel·er·at·ing.
to move or go faster; increase in speed.
to progress or develop faster.
Origin of accelerate
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
to go, occur, or cause to go or occur more quickly; speed up
(tr) to cause to happen sooner than expected
(tr) to increase the velocity of (a body, reaction, etc); cause acceleration
Word Origin for accelerate
C16: from Latin accelerātus, from accelerāre to go faster, from ad- (intensive) + celerāre to hasten, from celer swift
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Online Etymology Dictionary, © 2010 Douglas Harper