deaccelerate

English

Etymology

Etymology tree

Proto-Indo-European *de

Proto-Indo-European *-h₁

Proto-Indo-European *déh₁

Proto-Italic *dē

Latin dē

Latin dē-der.

English de-

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-Indo-European *-h₂tiinflu.

Proto-Italic *-ājō

Proto-Italic *-āō

Latin -ō

Latin celerō

Latin accelerō

Latin accelerātuslbor.

▲

Latin accelerō

Proto-Indo-European *-tós

Proto-Indo-European *-is

Proto-Indo-European *-tis

Proto-Indo-European *-Hō

Proto-Indo-European *-tiHō

Proto-Italic *-tiō

Latin -tiō

Latin accelerātiōder.

English accelerationbf.

English accelerate

English deaccelerate

From de- + accelerate.

Verb

deaccelerate (third-person singular simple present deaccelerates, present participle deaccelerating, simple past and past participle deaccelerated)

1. (nonstandard) Synonym of decelerate.
   • 2017, Shengqiang Yang, Surface Finishing Theory and New Technology, page 84:

     This impact deaccelerates the abrasive blocks and then immediately accelerates abrasive blocks in a rebound direction as the vibration reverses.