Artificial intelligent assistant

rose-nail

rose-nail
  [f. rose n.]
  A wrought nail having a round head made with, or cut into, triangular facets.

1640 in Entick London (1766) II. 177 Chair nails, Copper nails, rose nails, and saddle nails. 1660 Book of Rates s.v. Nailes, Copper nailes, Rose nailes, and Sadlers nailes. 1703 R. Neve City & C. Purchaser 212 Rose Nails..are drawn four-square in the Shank. 1851–3 Tomlinson's Cycl. Arts (1867) II. 206/1 Rose nails are made from 1½ to 40 lbs. per thousand. 1879 Cassell's Techn. Educ. IV. 12/1 ‘A ten-pound rose’ would signify a rose-nail, of which a thousand would weigh ten pounds.

Oxford English Dictionary

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