(lap) noun
1. That part of the body below the waist on which, when in a sitting posture, one may conveniently support anything; the upper and front surface of the thighs or knees: to hold a child on one's lap.
2. The clothing that covers the front of the thighs when one sits down.
3. By extension, a place for supporting or fostering: fortune's lap.
4. A loose fold or flap of a garment; a skirt.
5. That part of a substance which extends over another; also, the length of such extension: the lap of a shingle.
6. One course around a race track, usually an even fraction of a mile.
7. A piece of soft metal, wood, or leather, usually in the form of a rotating disk, used in cutting gems and polishing hard metal.
8. The state of overlapping.
—v. lapped, lap·ping v.t.
1. To fold and lay over; wrap around something.
2. To lay (one thing) partly over or beyond another: to lap weatherboards.
3. To reach or extend partly over or beyond; overlap: These doors lap each other.
4. To take upon or as upon the lap; surround with love, care, etc.: lapped in idleness and luxury.
5. To grind or polish (a gem) with a lap.
6. To get one or more laps ahead of (an opponent) in a race.
—v.i.
7. To be folded; wrap.
8. To lie partly upon or beside something else; overlap.
9. To lie beyond or into something else: One wall laps into the other. [OE læpa, lappa a fold or hanging part of a garment]

(lap) v.t. & v.i. lapped, lap·ping
1. To take (a liquid) into the mouth with the tongue: said of animals.
2. To wash against (the shore, etc.) with a slight, rippling sound: said of water.
—noun
1. The act of lapping, as with the tongue; a lick.
2. The sound of lapping, or a similar sound.
3. Colloq. That which is licked up, as pap or a drink, especially a weak or diluted drink. [Prob. fusion of OE lapian lap and OF laper lick <Gmc.]
—lap′per noun