Forgo
Pronunciation : For*go"
Part of Speech : v.
Etymology : [OE. forgan, forgon, forgoon, AS. forgan, prop., to go past, hence, to abstain from; pref. for- + gan to go; akin to G. vergehen to pass away, to transgress. See Go, v. i.]
Definition : Defn: To pass by; to leave. See 1st Forego. For sith [since] I shall forgoon my liberty At your request. Chaucer. And four [days] since Florimell the court forwent. Spenser.
Note: This word in spelling has been confused with, and almost superseded by, forego to go before. Etymologically the form forgo is correct.
t. [imp. Forwent; p. p. Forgone; p. pr. & vb. n. Forgoing.]
Source : Webster's Unabridged Dictionary, 1913