Also, hold it. Stop, wait. These expressions are usually used in the imperative, as in Hold everything, we can't unload the truck yet, or Hold it, you've gone far enough. [First half of 1900s]
Everything You Need To Know About ImperativesAn imperative sentence gives a command, demand, or instructions directly to an audience, and typically begins with an action word (or verb). These sentences often appear to lack a subject, or the person, place, or thing that performs the main action. This is because the subject of this type of sentence tends to be the audience that’s being directly addressed or commanded to do something. …
The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.