Green’s Dictionary of Slang

to hang someone.

a.1661		‘The Four-legg’d Quaker’ Rump Poems and Songs (1662) I 359: Thou Rogue, I’ll have thee haltered twice.
1741		Ordinary of Newgate Account of Malefactors executed at Tyburn 18th Mar. 1740 Pt II 12: When the Officer came to halter her in the Press Yard, she was very much shocked.
1796		Watty and Meg 3: O! I wish I had been halter’d / When I marry’d Maggy Howe!
1816		Morn. Post 27 Dec. 3/3: To give industrious Hangmen bread; / — O may they be h’altered soon.
1833		Albany Microscope (NY) 28 Dec. n.p.: We have only time to ‘halter’ a few delinquents this week [...] We have a host now under sentence, but have allowed them a little time.