Aid

Aid

v. t.

imp. & p. p. Aided; p. pr. & vb. n. Aiding

  1. To support, either by furnishing strength or means in coöperation to effect a purpose, or to prevent or to remove evil; to help; to assist.
    You speedy helpers . . . Appear and aid me in this enterprise.

Aid

n.
  1. Help; succor; assistance; relief.
    An unconstitutional mode of obtaining aid.
  2. The person or thing that promotes or helps in something done; a helper; an assistant.
    It is not good that man should be alone; let us make unto him an aid like unto himself.
    — Tobit viii. 6.
  3. A subsidy granted to the king by Parliament; also, an exchequer loan. (Eng. Hist.)
  4. A pecuniary tribute paid by a vassal to his lord on special occasions. (Feudal Law)
  5. An aid-de-camp, so called by abbreviation; as, a general's aid.

Phrases & Compounds
Aid prayer
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.