Black-letter
Pronunciation : Black"-let`ter
Part of Speech : a.
Definition : 1. Written or printed in black letter; as, a black-letter manuscript or book.
2. Given to the study of books in black letter; that is, of old books; out of date. Kemble, a black-letter man! J. Boaden.
3. 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