Webster's Revised Unabridged Dictionary · 1913

Daff

Daff (dȧf) , transitive verb

[Compare Doff.]

To cast aside; to put off; to doff. [Obsolete]
Canst thou so daff me? Thou hast killed my child. — Shakespeare

Daff , noun

[See Daft.]

A stupid, blockish fellow; a numskull. [Obsolete] — Chaucer

Daff (dȧf) , intransitive verb

To act foolishly; to be foolish or sportive; to toy. [Scottish] — Jamieson

Daff , transitive verb

To daunt. [Provincial English] — Grose