[uhn-buhk-uh l]
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verb (used without object), un·buck·led, un·buck·ling.
  1. to undo a buckle.

Origin of unbuckle

First recorded in 1350–1400, unbuckle is from the Middle English word unboclen. See un-2, buckle
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Related Words for unbuckle

release, unloose, undo, unbelt

Examples from the Web for unbuckle

Contemporary Examples of unbuckle

Historical Examples of unbuckle

Word Origin and History for unbuckle

late 14c., from un- (2) "reverse of" + buckle (v.1). Related: Unbuckled; unbuckling.

Online Etymology Dictionary, © 2010 Douglas Harper