DalekyoudaoicibaDictYouDict[Dalek 词源字典]
Dalek: [20] The name of these pathologically destructive robots, which first appeared on BBC TV’s Dr Who in 1963, was coined by their creator, Terry Nation. The story went about that he had come up with it one day while staring in a library at the spine of an encyclopedia volume covering entries from DA to LEK, but he has subsequently denied this.
[Dalek etymology, Dalek origin, 英语词源]
glaring (adj.)youdaoicibaDictYouDict
late 14c., "staring fiercely," present participle adjective from glare (v.). From 1510s of colors, etc., "vivid, dazzling;" meaning "obtrusively conspicuous" is from 1706. Related: Glaringly.
glaucous (adj.)youdaoicibaDictYouDict
"dull bluish-green, gray," 1670s, from Latin glaucus "bright, sparkling, gleaming," also "bluish-green," of uncertain origin, from Greek glaukos, a word used in Homer of the sea as "gleaming, silvery" (apparently without a color connotation); used by later writers with a sense of "greenish" (of olive leaves) and "blue, gray" (of eyes). Homer's glauk-opis Athene probably originally was a "bright-eyed," not a "gray-eyed" goddess. Greek for "owl" was glaux from its bright, staring eyes. Middle English had glauk "bluish-green, gray" (early 15c.).
lens (n.)youdaoicibaDictYouDict
1690s, "glass to regulate light rays," from Latin lens (genitive lentis) "lentil," on analogy of the double-convex shape. See lentil. Of the eye from 1719.
In the vernacular of the photographer, anyone crowding to the front of a group, staring into the lens, or otherwise attracting attention to himself is known as a "lens louse." ["American Photography," vol. 40, 1946; the term dates from 1915]
sprout (v.)youdaoicibaDictYouDict
Old English -sprutan (in asprutan "to sprout"), from Proto-Germanic *sprut- (cognates: Old Saxon sprutan, Old Frisian spruta, Middle Dutch spruten, Old High German spriozan, German sprießen "to sprout"), from PIE *spreud-, extended form of root *sper- (4) "to strew" (cognates: Greek speirein "to scatter," spora "a scattering, sowing," sperma "sperm, seed," literally "that which is scattered;" Old English spreawlian "to sprawl," sprædan "to spread," spreot "pole;" Armenian sprem "scatter;" Old Lithuanian sprainas "staring, opening wide one's eyes;" Lettish spriežu "I span, I measure"). Related: Sprouted; sprouting.
stare (v.)youdaoicibaDictYouDict
Old English starian "to stare, gaze, look fixedly at," from Proto-Germanic *staren "be rigid" (cognates: Old Norse stara, Middle Low German and Middle Dutch staren, Old High German staren, German starren "to stare at;" German starren "to stiffen," starr "stiff;" Old Norse storr "proud;" Old High German storren "to stand out, project;" Gothic andstaurran "to be obstinate"), from PIE root *ster- (1) "strong, firm, stiff, rigid" (see stereo- and compare torpor).

Not originally implying rudeness. To stare (someone) down is from 1848. Related: Stared; staring.
stark (adj.)youdaoicibaDictYouDict
Old English stearc "stiff, strong, rigid, obstinate; stern, severe, hard; harsh, rough, violent," from Proto-Germanic *starkaz (cognates: Old Norse sterkr, Danish, Old Frisian sterk, Middle Dutch starc, Old High German starah, German stark, Gothic *starks), from PIE root *ster- (1) "stiff, rigid" (see stereo-). From the same root as stare (v.).

Meaning "utter, sheer, complete" first recorded c. 1400, perhaps from influence of common phrase stark dead (late 14c.), with stark mistaken as an intensive adjective. Sense of "bare, barren" is from 1833. As an adverb from c. 1200. Related: Starkly; starkness. Stark-raving (adj.) is from 1640s; earlier stark-staring 1530s.