Webster's Revised Unabridged Dictionary · 1913

Unfold

Unfold , transitive verb

[Anglo-Saxon unfealdan. See 1st Un-, and Fold, transitive verb]

1.
To open the folds of; to expand; to spread out; as, to unfold a tablecloth.
Unfold thy forehead gathered into frowns. — Herbert
2.
To open, as anything covered or close; to lay open to view or contemplation; to bring out in all the details, or by successive development; to display; to disclose; to reveal; to elucidate; to explain; as, to unfold one's designs; to unfold the principles of a science.
Unfold the passion of my love. — Shakespeare
3.
To release from a fold or pen; as, to unfold sheep.

Unfold , intransitive verb

To open; to expand; to become disclosed or developed.
The wind blows cold While the morning doth unfold. — J. Fletcher