unsnib
verbEtymology From un- + snib.
1
to undo, untie, or open or become undone, untied, or opened.
- Catherine unsnibbed the [toilet] door and came out. She smiled bravely and went to wash her hands.1997, Bernard MacLaverty, 'Grace Notes' (novel), (Part 2, at page 262 in the 1998 Vintage paperback edition)
- Somehow she managed to unsnib the window and escape.
1 more example
- She unsnibs the window — the metal catches already hot between finger and thumb — and hauls the juddering sach upwards.2022, Liam McIlvanney, The Heretic, page 4: