Etymology: Middle English, from Old English; akin to Old High German blint blind, Old English blandan to mix — more at blend
Date: before 12th century
(2) having less than 1/10 of normal vision in the more efficient eye when refractive defects are fully corrected by lenses
b. of or relating to sightless persons
a. unable or unwilling to discern or judge <blind to a lover's faults> b. unquestioning <blind loyalty> <blind faith> 3. a. having no regard to rational discrimination, guidance, or restriction <blind choice> b. lacking a directing or controlling consciousness <blind chance> c. drunk 1a 4. a. made or done without sight of certain objects or knowledge of certain facts that could serve for guidance or cause bias <a blind taste test> <a blind clinical trial> — compare double-blind, single-blind b. having no knowledge of information that may cause bias during the course of an experiment or test <physicians blind to whether the test drug is administered> 5. defective: as a. lacking a growing point or producing leaves instead of flowers b. lacking a complete or legible address <blind mail> 6. a. difficult to discern, make out, or discover b. hidden from sight ; covered <blind seam> 7. having but one opening or outlet <blind sockets> 8. having no opening for light or passage ; blank <blind wall> • blindly adverb • blindness noun II. transitive verb Date: before 12th century 1. a. to make blind b. dazzle 2. a. to withhold light from b. hide, conceal • blindingly adverb III. noun Date: 1678 1. something to hinder sight or keep out light: as a. a window shutter b. a roller window shade c. venetian blind d. blinder 2. a place of concealment; especially a concealing enclosure from which one may shoot game or observe wildlife 3. a. something put forward for the purpose of misleading ; subterfuge b. a person who acts as a decoy or distraction IV. adverb Date: circa 1775 1. blindly: as a. to the point of insensibility <blind drunk> b. without seeing outside an airplane <fly blind> c. without knowledge of certain facts that could serve for guidance or cause bias <was supposed to taste the wine blind> 2. — used as an intensive <was robbed blind>
New Collegiate Dictionary. 2001.