the.com/writ

A judge's permission slip that makes the government do something, immediately.

means A formal written order from a court or other legal authority commanding someone to do something or stop doing something.

from From Old English 'writ,' meaning something written — tied directly to the verb 'writan,' to write (originally to scratch or carve marks). In early law, writs literally were short written commands sealed by a king or court, dispatched as an instruction to act. The sense narrowed over centuries from 'a piece of writing' generally to this one specific, muscular species of writing: the kind that legally compels.

origin
Old English for written command
habeas corpus
the most famous writ, literally produce the body
modern use
courts still issue them to override officials
phrase survivor
gave us large and small writ phrases
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