Branch \Branch\, v. i. [imp. & p. p. Branched; p. pr. & vb. n. Branching.]

1. To shoot or spread in branches; to separate into branches; to ramify.

2. To divide into separate parts or subdivision.

To branch off, to form a branch or a separate part; to diverge.

To branch out, to speak diffusively; to extend one's discourse to other topics than the main one; also, to enlarge the scope of one's business, etc.

To branch out into a long disputation. --Spectator.

Source: Webster's Revised Unabridged Dictionary (1913)