Green’s Dictionary of Slang

elevate v.1

1. (UK und.) to hang (a criminal).

[UK]Satirist (London) 25 Sept. 198/1: The other was somewhat elevated, but it was on ‘Tyburn tree’.

2. to render drunk.

[UK]Satirist (London) 21 Apr. 549/2: ‘Why do I [...] when I employ myself in intoxicating the landlord of the Pig and Pipkin, perform an act of Catholic worship?’ [...] ‘Because you busy yourself in elevating the host’.

3. (US) in poker, to raise an opponent; cit. 1926 refers to the loser’s attempt to win back his money.

[US]Life 8 Feb. 80: The Drum-mer said that as he had Got his other Tray, he would just El-e-vate him about Fif-ty [HDAS].
[US]J. Black You Can’t Win (2000) 150: Sanc was a hard loser and followed ‘Soapy’ around town for a week trying to ‘elevate’ him.