ravenness en · NOUN
Etymology
From raven + -ness.
Meanings
-
(uncountable) The quality of being a raven.
Not only are shoes and ravens not exchangeable, but it is to say the least questionable whether we should regard ravenness as positively relevant to blackness on the evidence of the white shoe.
1974, Mary B. Hesse, The Structure of Scientific Inference, page 160: