PLEDGE, n. [L. plico.]

1. Something put in pawn; that which is deposited with another as security for the repayment of money borrowed, or for the performance of some agreement or obligation; a pawn. A. borrows ten pounds of B., and deposits his watch as a pledge that the money shall be repaid; and by the repayment of the money, A. redeems the pledge.
2. Any thing given or considered as a security for the performance of an act. Thus a man gives his word or makes a promise to another, which is received as a pledge for fulfillment. The mutual affection of husband and wife is a pledge for the faithful performance of the marriage covenant. Mutual interest is the best pledge for the performance of treaties.
3. A surety; a hostage. – Ralegh. Dryden.
4. In law, a gage or security real or personal, given for the repayment of money. It is of two kinds; vadium vivum, a living pledge, as when a man borrows money and grants an estate to be held by the pledgee, till the rents and profits shall refund the money, in which case the land or pledge is said to be living; or it is vadium mortuum, a dead pledge, called a mortgage. [See Mortgage.] – Blackstone.
5. In law, bail; surety given for the prosecution of a suit, or for the appearance of a defendant, or for restoring goods taken in distress and replevied. The distress itself is also called a pledge, and the glove formerly thrown down by a champion in trial by battle, was a pledge by which the champion stipulated to encounter his antagonist in that trial. – Blackstone.
6. A warrant to secure a person from injury in drinking. To put in pledge, to pawn. To hold in pledge, to keep as security.

1. To deposit in pawn; to deposit or leave in possession of a person something which is to secure the repayment of money borrowed, or the performance of some act. [This word is applied chiefly to the depositing of goods or personal property. When real estate is given as security, we usually apply the word mortgage.]
2. To give as a warrant or security; as, to pledge one's word or honor; to pledge one's veracity.
3. To secure by a pledge. I accept her, / And here to pledge my vow I give my hand. [Unusual.] – Shak.
4. To invite to drink by accepting the cup or health after another. Johnson. Or to warrant or be surety for a person that he shall receive no harm while drinking, or from the draught; a practice which originated among our ancestors in their rude state, and which was intended to secure the person from being stabbed while drinking, or from being poisoned by the liquor. In the first case, a by-stander pledges the person drinking; in the latter, the person drinking pledges his guest by drinking first, and then handing the cup to his guest. The latter practice is frequent among the common people in America to this day; the owner of the liquor taking the cup says to his friend, I pledge you, and drinks, then hands the cup to his guest; a remarkable instance of the power of habit, as the reason of the custom has long since ceased.
5. To engage by promise or declaration.

1. The transfer of possession of personal property from a debtor to a creditor as security for a debt or engagement; also, the contract created between the debtor and creditor by a thing being so delivered or deposited, forming a species of bailment; also, that which is so delivered or deposited; something put in pawn.
   
   

   * Pledge is ordinarily confined to personal property; the title or ownership does not pass by it; possession is essential to it. In all these points it differs from a mortgage [see Mortgage]; and in the last, from the hypotheca of the Roman law. See Hypotheca. Story. Kent.

2. To deposit, as a chattel, in pledge or pawn] to leave in possession of another as security; as, to pledge one's watch.
3. A person who undertook, or became responsible, for another; a bail; a surety; a hostage.
   
   
   "I am Grumio's pledge." Shak.
4. To give or pass as a security; to guarantee; to engage; to plight; as, to pledge one's word and honor.
   
   

   We mutually pledge to each other our lives, our fortunes, and our sacred honor. The Declaration of Independence.

5. A hypothecation without transfer of possession.
6. To secure performance of, as by a pledge.
   
   
   [Obs.]

   To pledge my vow, I give my hand. Shak.

7. Anything given or considered as a security for the performance of an act; a guarantee; as, mutual interest is the best pledge for the performance of treaties.
   
   
   "That voice, their liveliest pledge of hope." Milton.
8. To bind or engage by promise or declaration; to engage solemnly; as, to pledge one's self.
9. A promise or agreement by which one binds one's self to do, or to refrain from doing, something; especially, a solemn promise in writing to refrain from using intoxicating liquors or the like; as, to sign the pledge; the mayor had made no pledges.
10. To invite another to drink, by drinking of the cup first, and then handing it to him, as a pledge of good will; hence, to drink the health of; to toast.
    
    

    Pledge me, my friend, and drink till thou be'st wise. Cowley.

11. A sentiment to which assent is given by drinking one's health; a toast; a health.
    
    

    Dead pledge. [A translation of LL. mortuum vadium.] (Law) A mortgage. See Mortgage. -- Living pledge. [A translation of LL. vivum vadium.] (Law) The conveyance of an estate to another for money borrowed, to be held by him until the debt is paid out of the rents and profits. -- To hold in pledge, to keep as security. -- To put in pledge, to pawn; to give as security.

    Syn. -- See Earnest.