英语词源字典 - 在线词源网站

jealous [jealous 词源字典]: jealous: [13] Etymologically, jealousy and zeal are two sides of the same coin. Both come ultimately from Greek zelos. This passed into post-classical Latin as zēlus, which later produced the adjective zēlōsus. Old French took this over as gelos or jelous and passed it on to English. The Greek word denoted ‘jealousy’ as well as ‘fervour, enthusiasm’, and it is this strand of meaning that has come down to us in jealous. Jalousie, incidentally, the French equivalent of jealousy, was borrowed into English in the 19th century in the sense ‘blind, shutter’ – the underlying notion apparently being that one can look through the slats without oneself being seen.
=> zeal[jealous etymology, jealous origin, 英语词源]
perspective (n.): late 14c., "science of optics," from Old French perspective and directly from Medieval Latin perspectiva ars "science of optics," from fem. of perspectivus "of sight, optical" from Latin perspectus "clearly perceived," past participle of perspicere "inspect, look through, look closely at," from per- "through" (see per) + specere "look at" (see scope (n.1)). Sense of "art of drawing objects so as to give appearance of distance or depth" is first found 1590s, influenced by Italian prospettiva, an artists' term. The figurative meaning "mental outlook over time" is first recorded 1762.
Perspex: 1935, trade name in Britain for what in the U.S. is called Plexiglas or Lucite, irregularly formed from Latin perspect-, past participle stem of perspicere "look through, look closely at" (see perspective).
perspicacity (n.): 1540s, from Middle French perspicacité (15c.) and directly from Late Latin perspicacitas "sharp-sightedness, discernment," from Latin perspicax "sharp-sighted, having the power of seeing through," from perspicere "look through, look closely at" (see perspective).
perspicuity (n.): late 15c., of things; 1540s, of expressions, from Latin perspicuitas "transparency, clearness," from perspicuus, from perspicere "look through, look closely at" (see perspective).
perspicuous (adj.): late 15c., from Latin perspicuus "transparent, clear, evident," from perspicere "look through, look closely at" (see perspective). Related: Perspicuously; perspicuousness.
transpicuous: "Transparent", Mid 17th century: from modern Latin transpicuus (from Latin transpicere 'look through') + -ous.