miserere

mis·e·re·re  (mz-râr, -rîr)

n.

1. Miserere

a. The 51st Psalm.

b. A musical setting of this psalm.

2.

a. A prayer for mercy.

b. An expression of lamentation or complaint.

3. See misericord.

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[Latin miserre, have mercy, the first word of the psalm, imperative sing. of miserr, to feel pity, from miser, wretched.]