Borrowing of the scribal abbreviation No. from (in) numerō.

No. (not comparable)

1. (archaic) Abbreviation of in number or to the number of.
   • 1661, Robert Lovell, A Compleat History of Animals and Minerals, page 129:

     They goe two months, & then bring forth a blind off-spring like bitches, n^o. eight or nine.

   • 1994, Dorland's Medical Dictionary, 28th edition, page 1141:

     No., abbreviation of L. numero, ‘to the number of’.

No.

1. Abbreviation of number
   • 1753, A Supplement to Mr Chambers's Cyclopaedia, s.v. "Otis":

     See Tab. of Birds, N^o 28.

   • 1840 February 4, Charles Dickens, letter:

     I am curious to see how the idea of the first No. of my projected work, strikes you.

   • 1974, Michael Gilbert, Flash Point, page 14:

     It's No. 276 Coalporter Street.

   The king made a gift of No. 10 to his old Eton roommate.

• French: nº
• German: Nr.
• Italian: nº, n., n.ro, N
• Portuguese: nº
• Russian: №
• Spanish: n.º, núm.