What is "forspeak"

Forspeak \For*speak"\, v. t. [Pref. for- + speak.]

1. To forbid; to prohibit.
   --Shak.

2. To bewitch. [Obs.]
   --Drayton.

vb. 1 (context transitive now historical English) To charm; bewitch. 2 (context transitive UK dialectal Northern England Scotland English) To injure or cause bad luck through immoderate praise or flattery; affect with the curse of an evil tongue, which brings ill luck upon all objects of its praise. 3 (context transitive obsolete English) To forbid; prohibit. (15th-19th c.)