All 5 Uses

lament
in
Dante's Paradise -- translated by Norton
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But he said, "Be silent, and let the years revolve:" so that I can tell nothing, save that just lament shall follow on your wrongs.†
Canto 1-11 *

lament = express grief or regret
[2] Those who have done the wrong shall justly lament therefor†
Canto 1-11
Whoso laments because man dies here in order to live thereabove, has not seen here the refreshment of the eternal rain.†
Canto 12-22

laments = expresses grief or regret
[12] And every one must believe that now, for earnest of this, Nicosia and Famagosta are lamenting and complaining because of their beast which departs not from the flank of the others†
Canto 12-22

lamenting = expressing grief or regret
[13] The lot of these cities in Cyprus, which are now lamenting under the rule of Henry II†
Canto 12-22

Definitions:

(1) (lament)
to express grief or regret
(2) (meaning too rare to warrant focus)
Although lament typically refers to a feeling or simple vocal expression, it can refer to a vocal expression as complex as a sad song or poem. It can even refer to sad, but non-vocal music -- as when Tennessee Williams references background music in A Streetcar Named Desire.