1. To go or move below or under.
2. To be subjected to; to bear up against; to pass through; to endure; to suffer; to sustain; as, to undergo toil and fatigue; to undergo pain, grief, or anxiety; to undergothe operation of amputation; food in the stomach undergoes the process of digestion. Certain to undergo like doom. (milton)
3. To be the bearer of; to possess. Their virtues else, be they as pure as grace, As infinite as man may undergo. (Shak)
4. To undertake; to engage in; to hazard. I have moved already Some certain of the noblest-minded romans To undergo with me an enterprise. (Shak)
5. To be subject or amenable to; to underlie. Claudio undergoes my challenge. (Shak)
Origin: AS. Undergan. See Under, and Go.