backset

[ bak-set ]
/ ˈbækˌsɛt /

noun

New England, Southern, and South Midland U.S.
  1. a setback; relapse; reverse.
  2. an eddy or countercurrent.
(on a lock on a door or the like) the horizontal distance between the face through which the bolt passes and the center line of the knob stem or keyhole.

Origin of backset

First recorded in 1565–75; back2 + set
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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