What does amphiboly mean?
The definition of amphiboly
Am*phib”o*ly, n.; pl. Amphibolies.
Etym: [L. amphibolia, Gr. amphibolie. See Amphibolous.]

Ambiguous discourse; amphibology. If it oracle contrary to our interest or humor, we will create an amphiboly, a double meaning where there is none. Whitlock.