UNDERGO', verb transitive
1. To suffer; to endure something burdensome or painful to the body or the mind; as, to undergo toil and fatigue; to undergo pain; to undergo grief or anxiety; to undergo the operation of amputation.
2.To pass through. Bread in the stomach undergoes the process of digestion; it undergoes a material alteration.
3. To sustain without fainting, yielding or sinking. Can you undergo the operation, or the fatigue?
4. To be the bearer of; to possess.
Virtues - as infinite as man may undergo [Not in use.]
5. To support; to hazard.
I have mov'd certain Romans to undergo with me an enterprise.
6. To be subject to.
Claudio undergoes my challenge. obsolete