The Collaborative International Dictionary of English v.0.48:

Grieve \Grieve\ (gr[=e]v), v. t. [imp. & p. p. Grieved; p. pr.
   & vb. n. Grieving.] [OE. greven, OF. grever, fr. L. gravare
   to burden, oppress, fr. gravis heavy. See Grief.]
   1. To occasion grief to; to wound the sensibilities of; to
      make sorrowful; to cause to suffer; to afflict; to hurt;
      to try.
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            Grieve not the Holy Spirit of God.    --Eph. iv. 30.
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            The maidens grieved themselves at my concern.
                                                  --Cowper,
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   2. To sorrow over; as, to grieve one's fate. [R.]
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The Collaborative International Dictionary of English v.0.48:

Grieve \Grieve\ (gr[=e]v), Greeve \Greeve\, n. [AS. ger[=e]fa.
   Cf. Reeve an officer.]
   A manager of a farm, or overseer of any work; a reeve; a
   manorial bailiff. [Scot.]
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         Their children were horsewhipped by the grieve. --Sir
                                                  W. Scott.
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The Collaborative International Dictionary of English v.0.48:

Grieve \Grieve\, v. i.
   To feel grief; to be in pain of mind on account of an evil;
   to sorrow; to mourn; -- often followed by at, for, or over.
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         Do not you grieve at this.               --Shak.
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WordNet (r) 3.0 (2006):

grieve
    v 1: feel grief [syn: grieve, sorrow]
    2: cause to feel sorrow; "his behavior grieves his mother" [syn:
       grieve, aggrieve]

Moby Thesaurus II by Grady Ward, 1.0:

80 Moby Thesaurus words for "grieve":
   ache, affect, afflict, affront, aggrieve, agonize, anguish,
   barb the dart, bear, bemoan, bewail, bleed, break down,
   bring to tears, brood over, bruise, complain, constrain, crush,
   cry, cut, cut up, deplore, desolate, dirge, discomfort, dismay,
   distress, draw tears, elegize, embitter, endure, fret,
   give offense, give sorrow words, give umbrage, hurt,
   hurt the feelings, injure, inundate, keen, knell, lament, melt,
   melt the heart, moan, mope, mourn, move, offend, oppress, outrage,
   overwhelm, pain, pierce, pine, pine away, prick, prostrate, reach,
   regret, repine, rue, sadden, shed tears, sigh, sing the blues,
   soften, sorrow, stab, sting, suffer, take on, torment, touch,
   twist the knife, wail, weep, weep over, wound