Main*tain (?), v. t. [imp. & p. p. Maintained (?); p. pr. & vb. n. Maintaining.] [OE. maintenen, F. maintenir, properly, to hold by the hand; main hand (L. manus) + F. tenir to hold (L.tenere). See Manual, and Tenable.]
To hold or keep in any particular state or condition; to support; to sustain; to uphold; to keep up; not to suffer to fail or decline; as, to maintain a certain degree of heat in a furnace; to maintain a fence or a railroad; to maintain the digestive process or powers of the stomach; to maintain the fertility of soil; to maintain present reputation.
To keep possession of; to hold and defend; not to surrender or relinquish.
God values . . . every one as he maintains his post.
To continue; not to suffer to cease or fail.
Maintain talk with the duke.
To bear the expense of; to support; to keep up; to supply with what is needed.
Glad, by his labor, to maintain his life.
What maintains one vice would bring up two children.
To affirm; to support or defend by argument.
It is hard to maintain the truth, but much harder to be maintained by it.
Syn. -- To assert; vindicate; allege. See Assert.
© Webster 1913.