cryptogenousadj.
/krɪpˈtɒdʒᵻnəs/, U.S. /krɪpˈtɑdʒənəs/ Now rare.
Of unknown or undetermined origin or cause; (Medicine) = cryptogenic adj. 1.
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the world > health and disease > ill health > a disease > production of disease > [adjective] > unknown cause
cryptogenous1862
cryptogenic1873
cryptogenetic1882
agnogenic1940
1862 Canad. Naturalist & Geologist 7 260 If this is really the case, it is a proof that certain cryptogenous rocks are decidedly not of metamorphic origin.
1897 Cleveland Jrnl. Med. 2 430 A reduction in urinary toxicity had been found by Pacini and Conti in cases of cryptogenous anemia.
1906 Brit. Med. Jrnl. 11 Aug. Epitome 21/1 There was not a single abscess in the whole body, and therefore the clinical diagnosis of cryptogenous pyaemia could be confirmed.
1989 Human Pathol. 20 132/2 The diagnoses of the remaining 36 patients were cryptogenous cirrhosis (ten patients), biliary cirrhosis (12 patients), [etc.].
This is a new entry (OED Third Edition, June 2011; most recently modified version published online March 2022).
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adj.1862