Sentence:  As they passed through the upper hall J. noticed that the carpet was red. This immediately brought back to her mind the recollection of the suicide and produced a peculiar feeling of fear,—<WSD>erythrophobia</WSD>,—which was immediately followed by pain in the back of her head... / The <WSD>erythrophobia</WSD> and the suicidal obsession, which did not yield to the influence of hypnotic suggestion, entirely disappeared and sank at once into the background. 
Meaning of the word marked with <WSD> tags:  Abnormal and persistent fear of the colour red.