from The Century Dictionary.
- noun Bracing quality or effect.
Sorry, no etymologies found.
However, the bracingness of "3 for Civility" or "Social Order" gives way to tunes where Mr. Osby, now miles away from his knotty, metrically shifty M-BASE persona, floats along in a melodic, minor-key way.
And as to personal intercourse with him, if I were asked what was the chief delight of this, I should say that it was the delight of bracingness.