The Collaborative International Dictionary of English v.0.48:

Waiment \Wai"ment\ v. & n.
   See Wayment. [Obs.]
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Wayment \Way"ment\, v. i. [imp. & p. p. Waymented; p. pr. &
   vb. n. Waymenting.] [OE. waymenten, OF. waimenter,
   gaimenter, guaimenter, from wai, guai, woe! (of Teutonic
   origin; see Woe) and L. lamentari to lament. See Lament.]
   To lament; to grieve; to wail. [Written also waiment.]
   [Obs.]
   [1913 Webster]

         Thilke science . . . maketh a man to waymenten.
                                                  --Chaucer.
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         For what boots it to weep and wayment,
         When ill is chanced?                     --Spenser.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Wayment \Way"ment\, n.
   Grief; lamentation; mourning. [Written also waiment.]
   [Obs.] --Spenser.
   [1913 Webster]