lament

Etymology

From French lamenter, from Latin lāmentor (“I wail, weep”), from lāmenta (“wailings, laments, moanings”); with formative -mentum, from the root *la-, probably ultimately imitative. Also see latrare.

noun

1. An expression of grief, suffering, sadness or regret.
2. A song expressing grief.

verb

1. (intransitive) To express grief; to weep or wail; to mourn.
2. (transitive) To express great sorrow or regret over; to bewail.
   Euston is so traditionally a part of the London scene that many will lament the passing of the old station when rebuilding is complete in readiness for the new electric service, which will probably be by multiple-units between Euston and Wolverhampton. 1960 February, R. C. Riley, “The London-Birmingham services - Past, Present and Future”, in Trains Illustrated, page 99
   By the end, Sunderland were lucky to lose by the same scoreline Northampton Town suffered against Southampton, in 1921. The Sunderland manager, Gus Poyet, lamented that it was “the most embarrassed I’ve ever been on a football pitch, without a doubt”. 18 October 2014, Paul Doyle, “Southampton hammer eight past hapless Sunderland in barmy encounter”, in The Guardian