The Collaborative International Dictionary
Unkiss \Un*kiss"\, v. t. [1st un- + king.] To cancel or annul what was done or sealed by a kiss; to cancel by a kiss. [Obs.]
Let me unkiss the oath 'twixt thee and me.
--Shak.
Wiktionary
vb. (context obsolete English) To cancel or annul something that was done or sealed with a kiss.
Usage examples of "unkiss".
His humped, unkissed body swayed back and forth in time with the snakes.
What he wanted was for her to want him as fiercely as he wanted her, to match his own desire and need with her own, and here she was fighting and struggling against him as if she were an unkissed child who did not even know what he wanted of her!
The maidens, also, would not have him pass into the hall unkissed, though presently, after their faces had felt his lips, they fell a-staring and wondering at Goldilind, and when Christopher took her by the hand and gave her welcome to the House of the Tofts, and they saw that she was his, they grew to be somewhat afraid, or it might be shy, both of her and of him.