also: しいにぶ
noun
Rare term for a deep, lustrous black, possibly used in classical or poetic contexts.
古い文献に「椎鈍」という色名が出てくる。
The color name 椎鈍 appears in old documents.
漆黒 is the common word for jet black; 椎鈍 is a rare, possibly archaic synonym.
The exact derivation is uncertain; the kanji 椎 (chinquapin) and 鈍 (dull) may relate to a dark, muted shade.