for·go also fore·go (fôr-gō', fōr-) tr.v.
for·went also fore·went (-wěnt'), for·gone also fore·gone (-gôn', -gŏn'), for·go·ing also fore·go·ing, for·goes also fore·goes To abstain from; relinquish: unwilling to forgo dessert.
[Middle English forgon, from Old English forgān, go away, forgo : for-, for- + gān, to go; see ghē- in Indo-European roots.] for·go'er n.