[n] any sacred song used to praise the Deity
[n] one of the 150 lyrical poems and prayers that comprise the Book of Psalms in the Old Testament; said to have been written by David
\Psalm\, n. [OE. psalm, salm, AS. sealm, L. psalmus, psalma, fr. Gr. ?, ?, fr. ? to pull, twitch, to play upon a stringed instrument, to sing to the harp: cf. OF. psalme, salme, F. psaume.]
1. A sacred song; a poetical composition for use in the praise or worship of God. Humus devout and holy psalms Singing everlastingly. --Milton.
2. Especially, one of the hymns by David and others, collected into one book of the Old Testament, or a modern metrical version of such a hymn for public worship.
\Psalm\, v. t. To extol in psalms; to sing; as, psalming his praises. --Sylvester.