RAP (2)
Source: 566, 567
rap (2). Rap, v.i. to strike smartly, batter, enrapture
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Rap, v. i. [imp. & p. p. Rapped (răpt); p. pr. & vb. n. Rapping.] [[Akin to Sw. rappa to strike, rapp stroke, Dan. rap, perhaps of imitative origin.]] To strike with a quick, sharp blow; to knock; as, to rap on the door.