Source : Webster's Revised Unabridged Dictionary (1913)

Knobbed \Knobbed\, a.
   Containing knobs; full of knobs; ending in a nob. See Illust
   of {Antenna}.

         The horns of a roe deer of Greenland are pointed at the
         top, and knobbed or tuberous at the bottom. --Grew.

Source : WordNet®

knobbed
     adj : used of old persons or old trees; covered with knobs or
           knots; "gnarled and knotted hands"; "a knobbed stick"
           [syn: {gnarled}, {gnarly}, {knotted}, {knotty}]

knob
     n 1: a circular rounded projection or protuberance [syn: {boss}]
     2: a round handle
     3: any thickened enlargement [syn: {node}, {thickening}]
     4: an ornament in the shape of a ball on the hilt of a sword or
        dagger [syn: {pommel}]
     [also: {knobbing}, {knobbed}]

knobbed
     See {knob}