DO (3)

Do (?), v. i. 1. 1. To act or behave in any manner; to conduct one's self.
They fear not the Lord, neither do they after . . . the law and commandment. 2 Kings xvii. 34. 2. 2. To fare; to be, as regards health; as, they asked him how he did; how do you do to-day?
3. 3. [[Perh. a different word. OE. dugen, dowen, to avail, be of use, AS. dugan. See Doughty.]] To succeed; to avail; to answer the purpose; to serve; as, if no better plan can be found, he will make this do.
You would do well to prefer a bill against all kings and parliaments since the Conquest; and if that won't do; challenge the crown. Collier. To do by. See under By. — To do for. (a) To answer for; to serve as; to suit. (b) To put an end to; to ruin; to baffle completely; as, a goblet is done for when it is broken. Some folks are happy and easy in mind when their victim is stabbed and done for. Thackeray. — To do withal, to help or prevent it. “I could not do withal.” Shak. — To do without, to get along without; to dispense with. — To have done, to have made an end or conclusion; to have finished; to be quit; to desist. — To have done with, to have completed; to be through with; to have no further concern with. — Well to do, in easy circumstances.