Emily Dickinson Lexicon

VANT'AGE, n. [Sp. ventaja; from the root of L. venio. See Advantage and Van.]

1. Gain; profit. [Obs.]
2. Superiority; state in which one has better means of action or defense than another. [This, I believe, is used only in the compound, vantage-ground.]
3. Opportunity; convenience. [Obs.] – Shak.