A lament or lamentation is a passionate expression of grief, often in music, poetry, or song form. The grief is most often born of regret, or mourning. Laments can also be expressed in a verbal manner, where the participant would lament about something they regret or someone they've lost, usually accompanied by wailing, moaning and/or crying. Laments constitute some of the oldest forms of writing and examples are present across human cultures.
–Wikipedia