availing

verb

1. (form-of, gerund, participle, present)present participle and gerund of avail

   “I'm availing myself of the opportunity.”

adj

1. Efficacious.

   “History in this case was all too availing”

noun

1. (dated, no-plural)Effect in achieving a goal or aim; purpose, use

   “Any use would probably be an availing of the protection afforded by the passport.”