v. [UN-2 3.]

1

  1.  trans. To release from a dam. Also fig.

2

1697.  Dryden, Virg. Georg., I. 160. The wary Ploughman, on the Mountain’s Brow, Undams his watry Stores.

3

1885.  Pall Mall G., 27 Oct., 5/1. A stream of impertinent chatter such as the most voluble sciolist would hesitate to undam.

4

  2.  To deprive of a protective dam.

5

a. 1713.  A. Pitcairne, in N. & Q., Ser. v. VIII. 498/1. Amphibious wretches, Sudden be your fall! May man undam you, And God damn you all! (Cf. UNDAMN v.)

6