to branch out

Webster's Dictionary (GCIDE)

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. [1913 Webster]

2.To divide into separate parts or subdivision. [1913 Webster]

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. [1913 Webster]

To branch out into a long disputation.— Spectator.[1913 Webster]