elegy
noun [ C ] uk/ˈel.ə.dʒi/ us/ˈel.ə.dʒi/
（尤指怀念故人或往事的）挽歌;挽诗;哀歌
a sad poem or song, especially remembering someone who has died or something in the past
Gray's "Elegy in a Country Churchyard" is a famous English poem. 格雷的《墓园挽歌》是一首著名的英国诗。