assaultyoudaoicibaDictYouDict[assault 词源字典]
assault: [13] To assault somebody was originally to ‘jump on’ them. The word comes from a Vulgar Latin compound verb *assaltāre, formed from the prefix ad- ‘to’ and saltāre ‘jump’, a frequentative form (denoting repeated action) of the verb salīre ‘jump’ (which is the source of English salient, and by a similar compounding process produced assail [13]). In Old French this became asauter, and English originally borrowed it as asaute, but in the 16th century the l was reintroduced.
=> assail, somersault[assault etymology, assault origin, 英语词源]
insultyoudaoicibaDictYouDict
insult: [16] The -sult of insult comes from a word that meant ‘jump’. Its source was Latin insultāre ‘jump on’, a compound verb based on saltāre ‘jump’. This was a derivative of salīre ‘jump’, source in one way or another of English assail, assault, desultory, salacious, and salient. Old French took insultāre over as insulter and used it for ‘triumph over in an arrogant way’. This was how the word was originally used in English, but at the beginning of the 17th century the now familiar sense ‘abuse’ (which had actually developed first in the Latin verb) was introduced.
=> assail, assault, desultory, salacious, salient