The definition of a requiem is a song, chant or poem for someone who died.
(noun)An example of a requiem is Mozart’s Requiem in D Minor.
See Requiem in Webster's New World College Dictionary
noun
Origin: ME < L, acc. of requies, rest (see re- & quiet): first word of the Introit in the Latin Mass for the Dead
See Requiem in American Heritage Dictionary 4
noun
Origin:
Origin: Middle English
Origin: , from Latin
Origin: , accusative of requiēs, rest, the first word of the mass for the dead
Origin: : re-, re-
Origin: + quiēs, quiet; see kweiə- in Indo-European roots
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