Hypertext Webster Gateway: "Vap"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Vap \Vap\ (v[a^]p), n. [See {Vapid}.]
That which is vapid, insipid, or lifeless; especially, the
lifeless part of liquor or wine. [Obs.]
In vain it is to wash a goblet, if you mean to put into
it nothing but the dead lees and vap of wine. --Jer.
Taylor.
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