[1] : The Collaborative International Dictionary of English v.0.48

pray \pray\, v. t.
   1. to address earnest request to; to supplicate; to entreat;
      to implore; to beseech.
      1913 webster

            and as this earl was preyed, so did he. --chaucer.
      1913 webster

            we pray you . . . by ye reconciled to god. --2 cor.
                                                  v. 20.
      1913 webster

   2. to ask earnestly for; to seek to obtain by supplication;
      to entreat for.
      1913 webster

            i know not how to pray your patience. --shak.
      1913 webster

   3. to effect or accomplish by praying; as, to pray a soul out
      of purgatory. --milman.
      1913 webster

   to pray in aid. law
      a to call in as a helper one who has an interest in the
          cause. --bacon.
      b a phrase often used to signify claiming the benefit of
          an argument. see under aid. --mozley  w.
          1913 webster
see also:
to pray in aid aid 

[2] : The Collaborative International Dictionary of English v.0.48

aid \aid\, n. f. aide, of. a"ide, a"ie, fr. the verb. see
   aid, v. t.
   1. help; succor; assistance; relief.
      1913 webster

            an unconstitutional mode of obtaining aid. --hallam.
      1913 webster

   2. the person or thing that promotes or helps in something
      done; a helper; an assistant.
      1913 webster

            it is not good that man should be alone; let us make
            unto him an aid like unto himself.    --tobit viii.
                                                  6.
      1913 webster

   3. eng. hist. a subsidy granted to the king by parliament;
      also, an exchequer loan.
      1913 webster

   4. feudal law a pecuniary tribute paid by a vassal to his
      lord on special occasions. --blackstone.
      1913 webster

   5. an aid-de-camp, so called by abbreviation; as, a general's
      aid.
      1913 webster

   aid prayer law, a proceeding by which a defendant
      beseeches and claims assistance from some one who has a
      further or more permanent interest in the matter in suit.
      

   to pray in aid, to beseech and claim such assistance.
      1913 webster
see also:
aid aid prayer to pray in aid 

Aid >> A Words
Aid, definition of term: Aid
aid_pag1.html

Audiovisual Aid >> A Words
Audiovisual Aid, definition of term: Audiovisual Aid
audiovisual+aid_pag1.html