black-letter

black-letter is defined in Webster's Unabridged Dictionary (1913) with 2 senses. The full text of each entry is reproduced verbatim below.

Definitions

  1. 1.Given to the study of books in black letter; that is, of old books; out of date. Kemble, a black-letter man! J. Boaden.
  2. 2.Of or pertaining to the days in the calendar not marked with red letters as saints' days. Hence: Unlucky; inauspicious.

Source: Webster's Unabridged Dictionary, 1913 edition (public domain, via GCIDE / Project Gutenberg).

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