The American Heritage® Dictionary of the English Language, 4th edition Copyright © 2010 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
transitive verb snibbed, snib·bing, snibs Chiefly British
To latch (a door or window): “[The] window is snibbed on the inner side” (Arthur Conan Doyle).
Origin: Origin unknown.