FORGOING
renunciation, forgoing, forswearing
(noun) the act of renouncing; sacrificing or giving up or surrendering (a possession or right or title or privilege etc.)
Source: WordNet® 3.1
Verb
forgoing
present participle of forgo
Source: Wiktionary
FORGO
For*go", v. t. [imp. Forwent; p. p. Forgone; p. pr. & vb. n.
Forgoing.] Etym: [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: 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superseded by, forego to go before.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.
Source: Webster’s Unabridged Dictionary 1913 Edition