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obscure [obscure 词源字典]: obscure: see sky
[obscure etymology, obscure origin, 英语词源]
camera obscura (n.): 1725, "a darkened room;" c. 1730, "a device for project pictures;" see camera.
obscurant (adj.): 1878, from Latin obscurantem (nominative obscurans), present participle of obscurare (see obscure (v.)).
obscurantism (n.): "opposition to enlightenment," 1834, from German obscurantismus (18c.); see obscurant + -ism.
obscurantist (n.): 1841; see obscurantism + -ist.
obscuration (n.): late 15c., from Latin obscurationem (nominative obscuratio) "a darkening, obscuring," noun of action from past participle stem of obscurare (see obscure (v.)).
obscure (adj.): c. 1400, "dark," figuratively "morally unenlightened; gloomy," from Old French obscur, oscur "dark, clouded, gloomy; dim, not clear" (12c.) and directly from Latin obscurus "dark, dusky, shady," figuratively "unknown; unintelligible; hard to discern; from insignificant ancestors," from ob "over" (see ob-) + -scurus "covered," from PIE *(s)keu- "to cover, conceal" (see sky). Related: Obscurely.
obscure (v.): early 15c., "to cover (something), cloud over," from obscure (adj.) or else from Middle French obscurer, from Latin obscurare "to make dark, darken, obscure," from obscurus. Related: Obscured; obscuring.
obscurity (n.): late 15c., "absence of light;" 1610s with meaning "condition of being unknown;" from obscure (adj.) + -ity; or else from Middle French obscurité, variant of Old French oscureté "darkness, gloom; vagueness, confusion; insignificance" (14c.), from Latin obscuritatem (nominative obscuritas) "darkness, indistinctness, uncertainty," from obscurus.