Forego \Fore*go"\, v. t. [imp. Forewent 2; p. p. Foregone (?; 115); p. pr. & vb. n. Foregoing.]

[See Forgo.]

1. To quit; to relinquish; to leave.

Stay at the third cup, or forego the place. --Herbert.

2. To relinquish the enjoyment or advantage of; to give up; to resign; to renounce; -- said of a thing already enjoyed, or of one within reach, or anticipated.

All my patrimony,, If need be, I am ready to forego. --Milton.

Thy lovers must their promised heaven forego. --Keble.

[He] never forewent an opportunity of honest profit. --R. L. Stevenson.

Note: Forgo is the better spelling etymologically, but the word has been confused with Forego, to go before.

Source: Webster's Revised Unabridged Dictionary (1913)