Akademik

lament
n. & v.
—n.
1 a passionate expression of grief.
2 a song or poem of mourning or sorrow.
—v.tr. (also absol.)
1 express or feel grief for or about; regret (lamented the loss of his ticket).
2 (as lamented adj.) a conventional expression referring to a recently dead person (your late lamented father).
Phrases and idioms:
lament for (or over) mourn or regret.
Derivatives:
lamenter n. lamentingly adv.
Etymology: L lamentum

Useful english dictionary. 2012.