Then with her slender fingers she tried to unfasten the knots that secured the cord.
He was irritated to find that he could not unfasten the knot in which he had tied his reins.
Jeter frantically tried to unfasten the handcuffs as they ran.
He carries his purse-strings in a knot which it would break his heart to unfasten.
Without a word, he began to unfasten it, with hands ...