"Leverage" as a verb

[Barnhart]

leverage, v.

Third Barnhart Dictionary of New English (e.q.=1957)
Macquarie Dictionary of New English
Oxford Dictionary of New Words
Bloomsbury, Neologisms New Words since 1960

I would guess that by now it's at least informal.

Regards,
David K. Barnhart, Editor
The Barnhart Dictionary Companion [quarterly]
barnhart at highlands.com
www.highlands.com/Lexik

"Necessity obliges us to neologize."
Thomas Jefferson-August 16, 1813