the.com/threnody

means A formal song or poem of mourning, composed to lament someone's death.

from From Greek thrēnōidia, a fusion of thrēnos ('wailing, lament') and ōidē ('song, ode') — literally a 'wailing-song.' The thrēnos itself had deep roots in Greek funeral practice, where professional mourners keened over the dead; the ōidē half ties it to the same family as 'ode' and 'comedy.' The word passed into English in the 1600s as poets borrowed the Greek term to dignify grief with formal music.