noun

• (obsolete) Profit; return; proceeds.
  "My house is as t’were the Caue, where the yong Out-lawe hoords the stolne vayles of his occupation […]"
• (chiefly in the plural, obsolete) Money given to servants by visitors; a gratuity; also vale.
  "Do you remember, how many Rich Gowns and Petticoats, how many lac’d Pinners, Hoods, Scarfs, and Nightrails, I have given you, since the three Years you have serv’d me, together with many other Vails, Perquisites, and Profits you have enjoy’d in my Service?"

noun

• (obsolete) Submission.

verb

• (transitive, obsolete) To lower, let fall; to allow or cause to sink.
  "Then let them vale a bonet of their proud ſayle,"
• (transitive, vexillology) To lower or “dip” a carried flag or banner in a salute by a forward reducing of the angle of the pike/flagstaff with respect to the ground; in extreme instances, as when saluting a monarch, both the banner and the finial of the pike are allowed to rest upon the ground.
• (intransitive, obsolete, nautical) To lower a sail, in salute or otherwise.
  "Both we will walke vpon the loftie cliffes, And Chriſtian Merchants that with Ruſſian ſtems Plow vp huge furrowes in the Caſpian ſea, Shall vaile to vs, as Lords of al the Lake."
• (transitive, obsolete) To remove as a sign of deference, as a hat.
  "[…] Now the time is come That France must vail her lofty-plumed crest And let her head fall into England’s lap."