Bewail, v. t. [imp. & p. p. Bewailed; p. pr. & vb. n. Bewailing.]
To express deep sorrow for, as by wailing; to lament; to wail over. Hath widowed and unchilded many a one, Which to this hour bewail the injury. Shak.
Syn. -- To bemoan; grieve. -- See Deplore.
1 other Webster entry under this spelling
Bewail, v. i.
To express grief; to lament. Shak.
Shades of meaning
Fernald has no entry of its own for bewail; he lists it under mourn.
He lists it without comment; the entries above explain its neighbors.