An elegy is a poem of serious reflection, and in English literature usually a lament for the dead. However, according to The Oxford Handbook of the Elegy, "for all of its pervasiveness ... the 'elegy' remains remarkably ill defined: sometimes used as a catch-all to denominate texts of a somber or pessimistic tone, sometimes as a marker for textual monumentalizing, and sometimes strictly as a sign of a lament for the dead".[1][2]
^Weisman, Karen, ed. (2010). The Oxford Handbook of the Elegy. Oxford handbooks of literature. Oxford University Press. doi:10.1093/oxfordhb/9780199228133.001.0001. ISBN9780199228133. For all of its pervasiveness, however, the 'elegy' remains remarkably ill-defined: sometimes used as a catch-all to denominate texts of a somber or pessimistic tone, sometimes as a marker for textual monumentalizing, and sometimes strictly as a sign of a lament for the dead.