• Webster's Revised Unabridged Dictionary
    • v. t Unhasp To unloose the hasp of; to unclose.
    • ***
Century Dictionary and Cyclopedia
    • unhasp To loose from a hasp; let go.
    • ***
Chambers's Twentieth Century Dictionary
    • v.t Unhasp un-hasp′ to loose from a hasp.
    • ***


Webster's Revised Unabridged Dictionary
1st pref. un-, + hasp,


In literature:

I had to cling to my place with one hand, whilst I unhasped the clamps of metal that made the top of her prison with the other.
"The Lost Continent" by C. J. Cutcliffe Hyne
The window was unhasped.
"Night and Day" by Virginia Woolf
He sprang tip, partly dressed himself, and unhasped the window.
"Eve's Ransom" by George Gissing
The girl unhasped the brazen hook and looked out.
"The Black Douglas" by S. R. Crockett
Twice I knocked again, and the door, which was unhasped, flew open.
"Harper's New Monthly Magazine, v. 3, number 18" by Various
I ascended to the casement, unhasped it, and looked out.
"A Book of Ghosts" by Sabine Baring-Gould
Unless the start should be too long delayed, or the trainmen should discover the unhasped door, he was measurably safe.
"The Real Man" by Francis Lynde
She cautiously slid one hand to her neck, unhasped the mantle, and it was snatched from her shoulders and carried away.
"In the Roar of the Sea" by Sabine Baring-Gould