Date: 1530 transitive verb to open the clasp of, to open or cause to be opened (as a clenched hand), intransitive verb to loosen a hold
UNCLASP
Meaning of UNCLASP in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012