† psydraciumn.

Inflections: Plural psydracia.

Origin: A borrowing from Latin. Etymon: Latin psydracium.

Etymology: < post-classical Latin psydracium (1583 in the passage translated in quot. 1585 as psydracia, perhaps by misinterpretation of the neuter plural form as feminine singular; 10th cent. as psydracion) < Hellenistic Greek ψυδράκιον pimple, pustule < Byzantine Greek ψυδρακ-, ψύδραξ ( > post-classical Latin psydrax, plural psydraces (1679 or earlier)) pimple, pustule (although this is apparently first attested later), of uncertain origin + -ιον, diminutive suffix.Hellenistic Greek ψυδράκιον is explained in scholia (medieval Greek or earlier) on Theocritus 12. 24 as a blister on the nose caused by lying, and is derived from ψυδρός lying, false, but this is now considered a popular etymology. Post-classical Latin psydracium is not found in Celsus; in the passage referred to in quot. 1684 he uses classical Latin phlyzacion phlyzacium n. Paulus and Alexander, also mentioned in this quot., are Byzantine Greek medical writers. N.E.D. (1909) gives the pronunciation as (psidrēⁱ·siɒ̆m) /psɪˈdreɪsɪəm/.

Medicine. Obsolete.

A pustule or vesicle.

ΘΚΠ

the world > health and disease > ill health > a disease > eruption > [noun] > spot of > blister

bladderc1000

blistera1400

blurec1440

blurrea1529

water wheal1530

vesication1543

phlycten1585

psydracium1585

water bladder1587

bleb1607

phlyzacium1693

bullule1707

vesicle1799

pompholyx1808

water blister1821

blab1861

bulla1877

papulovesicle1877

vesicula1877

dermoid1897

1585 J. Banister Wecker's Compend. Chyrurg. i. xvii. 120 Of Psydracia [L. de Psydracia]. These are hard whitishe pustules, which yeelde out matter by pressing, or they are little swellinges in the heade, like pushes.

1684 tr. S. Blankaart Physical Dict. 239 Psydracia [L. Psydracia], according to Paulus and Alexander, are little Ulcers of the Skin of the Head, like those which are wont to burn the Skin. Celsus says, they are an hard sort of Pustle, something whitish, and acute, out of which is squeezed a moist Matter.

1726 Quincy's Lexicon Physico-medicum (ed. 3) Psydracium, is a pointed white Pustule or Tumor upon the Skin, containing a serous Humour.

1833 J. Forbes et al. Cycl. Pract. Med. II. 594/2 With regard to a supposed species of impetigo described by Willan and Bateman, under the title impetigo rodens, we..are rather disposed to regard it as a variety of malignant ulcer, complicated with psydracia.

1893 P. H. Pye-Smith Introd. Study Dis. Skin 11 The distinction between large pustules with an inflamed base, the hot pustules of ecthyma, called phlyzacia, and the small cold pustules of impetigo called psydracia, is unmeaning, and the two terms in question may be forgotten.

Derivatives

† psydracious adj. (also psydraceous) [compare French psydracié (1828 in the source translated in quot. 1842)] Obsolete of the nature of a psydracium.

ΘΚΠ

the world > health and disease > ill health > a disease > suppuration > [adjective] > abscess > boil > pustule

pustulate?a1425

pustuled?a1425

whey-wormeda1529

pustulous1543

pustulent1607

pustulated1666

pustular1716

whelky1822

psydracious1829

phlyzacious1830

papulopustular1843

pustuliform1846

pustulant1895

1829 S. Cooper Good's Study Med. (ed. 3) V. 634 In a day or two, the disease will show its true character by the formation of numerous psydracious pustules over the inflamed and humid skin.

1842 T. H. Burgess tr. P. L. A. Cazenave & H. E. Schedel Man. Dis. Skin 138 The successive development of psydraceous pustules [Fr. pustules psydraciées].

This entry has been updated (OED Third Edition, September 2007; most recently modified version published online December 2021).

单词	psydracium
释义	† psydraciumn. Inflections: Plural psydracia. Origin: A borrowing from Latin. Etymon: Latin psydracium. Etymology: < post-classical Latin psydracium (1583 in the passage translated in quot. 1585 as psydracia, perhaps by misinterpretation of the neuter plural form as feminine singular; 10th cent. as psydracion) < Hellenistic Greek ψυδράκιον pimple, pustule < Byzantine Greek ψυδρακ-, ψύδραξ ( > post-classical Latin psydrax, plural psydraces (1679 or earlier)) pimple, pustule (although this is apparently first attested later), of uncertain origin + -ιον, diminutive suffix.Hellenistic Greek ψυδράκιον is explained in scholia (medieval Greek or earlier) on Theocritus 12. 24 as a blister on the nose caused by lying, and is derived from ψυδρός lying, false, but this is now considered a popular etymology. Post-classical Latin psydracium is not found in Celsus; in the passage referred to in quot. 1684 he uses classical Latin phlyzacion phlyzacium n. Paulus and Alexander, also mentioned in this quot., are Byzantine Greek medical writers. N.E.D. (1909) gives the pronunciation as (psidrēⁱ·siɒ̆m) /psɪˈdreɪsɪəm/. Medicine. Obsolete. A pustule or vesicle. ΘΚΠ the world > health and disease > ill health > a disease > eruption > [noun] > spot of > blister bladderc1000 blistera1400 blurec1440 blurrea1529 water wheal1530 vesication1543 phlycten1585 psydracium1585 water bladder1587 bleb1607 phlyzacium1693 bullule1707 vesicle1799 pompholyx1808 water blister1821 blab1861 bulla1877 papulovesicle1877 vesicula1877 dermoid1897 1585 J. Banister Wecker's Compend. Chyrurg. i. xvii. 120 Of Psydracia [L. de Psydracia]. These are hard whitishe pustules, which yeelde out matter by pressing, or they are little swellinges in the heade, like pushes. 1684 tr. S. Blankaart Physical Dict. 239 Psydracia [L. Psydracia], according to Paulus and Alexander, are little Ulcers of the Skin of the Head, like those which are wont to burn the Skin. Celsus says, they are an hard sort of Pustle, something whitish, and acute, out of which is squeezed a moist Matter. 1726 Quincy's Lexicon Physico-medicum (ed. 3) Psydracium, is a pointed white Pustule or Tumor upon the Skin, containing a serous Humour. 1833 J. Forbes et al. Cycl. Pract. Med. II. 594/2 With regard to a supposed species of impetigo described by Willan and Bateman, under the title impetigo rodens, we..are rather disposed to regard it as a variety of malignant ulcer, complicated with psydracia. 1893 P. H. Pye-Smith Introd. Study Dis. Skin 11 The distinction between large pustules with an inflamed base, the hot pustules of ecthyma, called phlyzacia, and the small cold pustules of impetigo called psydracia, is unmeaning, and the two terms in question may be forgotten. Derivatives † psydracious adj. (also psydraceous) [compare French psydracié (1828 in the source translated in quot. 1842)] Obsolete of the nature of a psydracium. ΘΚΠ the world > health and disease > ill health > a disease > suppuration > [adjective] > abscess > boil > pustule pustulate?a1425 pustuled?a1425 whey-wormeda1529 pustulous1543 pustulent1607 pustulated1666 pustular1716 whelky1822 psydracious1829 phlyzacious1830 papulopustular1843 pustuliform1846 pustulant1895 1829 S. Cooper Good's Study Med. (ed. 3) V. 634 In a day or two, the disease will show its true character by the formation of numerous psydracious pustules over the inflamed and humid skin. 1842 T. H. Burgess tr. P. L. A. Cazenave & H. E. Schedel Man. Dis. Skin 138 The successive development of psydraceous pustules [Fr. pustules psydraciées]. This entry has been updated (OED Third Edition, September 2007; most recently modified version published online December 2021). < n.1585
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