What does the word avail mean?

Usage examples for avail

  1. I had pushed a chair forward for her and she acknowledged the offer with a smile, but did not avail herself of it at once, for she went to the bed where Baby Paul was, for a wonder, lying awake and rolling his eyes about. – A Top-Floor Idyl by George van Schaick
  2. Then we asked, " Are you willing to run the risk, and avail yourselves of this chance to do a glorious act?" – By Canoe and Dog-Train by Egerton Ryerson Young
  3. It would have been of little avail, and it carried with it stuff that Mr. Secretary would give almost his precious place to possess, and that might be fatal to more of us. – Unknown to History A Story of the Captivity of Mary of Scotland by Charlotte M. Yonge