Lap \Lap\, v. t. [imp. & p. p. Lapped; p. pr. & vb. n. Lapping.]

1. To rest or recline in a lap, or as in a lap.

To lap his head on lady's breast. --Praed.

2. To cut or polish with a lap, as glass, gems, cutlery, etc. See 1st Lap, 10.

Source: Webster's Revised Unabridged Dictionary (1913)
 

Lapping \Lap"ping\, n. A kind of machine blanket or wrapping material used by calico printers. --Ure.

Lapping engine, Lapping machine (Textile Manuf.), A machine for forming fiber info a lap. See its Lap, 9.

Source: Webster's Revised Unabridged Dictionary (1913)