slow up

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slow up (third-person singular simple present slows up, present participle slowing up, simple past and past participle slowed up)

1. (idiomatic, colloquial) To slow; to slow down; to decelerate.
   • 2018 October 17, Drachinifel, 25:13 from the start, in Last Ride of the High Seas Fleet - Battle of Texel 1918‎, archived from the original on 4 August 2022:

     Amidst all the chaos, Großer Kurfürst slows up and strikes her colors, her crew having had enough, and have^[sic] overpowered the officers - willing to fight, but not willing to commit suicide.

• slow, slow down, decelerate

• speed up, accelerate