[ ək'sɛləreɪt ]
■ verb begin to move more quickly.
↘increase in rate, amount, or extent.
↘ Physics undergo a change in velocity.
Derivatives
acceleration noun
accelerative adjective
Origin
C16 (earlier (C15) as acceleration ): from L. accelerat- , accelerare 'hasten', from ad- 'towards' + celer 'swift'.