Source : Webster's Revised Unabridged Dictionary (1913)

Hover \Hov"er\, n. [Etymol. doubtful.]
   A cover; a shelter; a protection. [Archaic] --Carew. --C.
   Kingsley.

Hover \Hov"er\, v. i. [imp. & p. p. {Hovered}; p. pr. & vb. n.
   {Hovering}.] [OE. hoveren, and hoven, prob. orig., to abide,
   linger, and fr. AS. hof house; cf. OFries. hovia to receive
   into one's house. See {Hovel}.]
   1. To hang fluttering in the air, or on the wing; to remain
      in flight or floating about or over a place or object; to
      be suspended in the air above something.

            Great flights of birds are hovering about the
            bridge, and settling on it.           --Addison.

            A hovering mist came swimming o'er his sight.
                                                  --Dryden.

   2. To hang about; to move to and fro near a place,
      threateningly, watchfully, or irresolutely.

            Agricola having sent his navy to hover on the coast.
                                                  --Milton.

            Hovering o'er the paper with her quill. --Shak.

Source : WordNet®

hover
     v 1: be undecided about something; waver between conflicting
          positions or courses of action; "He oscillates between
          accepting the new position and retirement" [syn: {vibrate},
           {vacillate}, {oscillate}]
     2: move to and fro; "The shy student lingered in the corner"
        [syn: {linger}]
     3: hang in the air; fly or be suspended above
     4: be suspended in the air, as if in defiance of gravity; "The
        guru claimed that he could levitate" [syn: {levitate}]
     5: hang over, as of something threatening, dark, or menacing;
        "The terrible vision brooded over her all day long" [syn:
        {brood}, {loom}, {bulk large}]