plaint

noun4

1. •
   A complaint.

   • she seemed to repeat, though with perceptible resignation, her plaint of a moment before. ‘Your father, darling, is a very odd person indeed.’ — 1897
2. •
   (UK, no longer used) An accusation.

   • Once the plaint had been made there was nothing that could be done to revoke it.
3. •
   (literary, no longer used) A lament or woeful cry.

   • In the first paroxysm of his grief, Ingolfr exclaimed, (what sorrowing heart has not echoed his plaint?) that he could never more taste of joy. — 1827
4. •
   (no longer used) A sad song.