strangeyoudaoicibaDictYouDict[strange 词源字典]
strange: [13] The etymological notion underlying strange is of being ‘beyond the usual bounds or boundaries’. This evolved into ‘foreign’ (which survives in the closely related French étrange) and ‘odd’. The word came via Old French estrange from Latin extrāneus ‘foreign, strange’ (source of English extraneous [17]), an adjective based on extrā ‘outward, outside’. Stranger [14] goes back to *extrāneārius, a Vulgar Latin derivative of extrāneus; and another derivative, extrāneāre ‘alienate’, produced English estrange [15].
=> estrange, extraneous[strange etymology, strange origin, 英语词源]
strange (adj.)youdaoicibaDictYouDict
late 13c., "from elsewhere, foreign, unknown, unfamiliar," from Old French estrange "foreign, alien, unusual, unfamiliar, curious; distant; inhospitable; estranged, separated" (Modern French étrange), from Latin extraneus "foreign, external, from without" (source also of Italian strano "strange, foreign," Spanish estraño), from extra "outside of" (see extra). In early use also strounge, straunge. Sense of "queer, surprising" is attested from late 14c. In nuclear physics, from 1956.