heraldyoudaoicibaDictYouDict[herald 词源字典]
herald: [14] Etymologically, a herald is a ‘leader of an army’. The word comes via Old French herault from a prehistoric Germanic *khariwald-, a compound formed from *kharjaz ‘army’ (which occurs also in English harangue, harbinger, harbour, harness, and harry) and *wald- ‘rule’ (source of English wield). It is identical in origin with the personal name Harold.
=> harangue, harbinger, harbour, harness, harry, wield[herald etymology, herald origin, 英语词源]
herald (n.)youdaoicibaDictYouDict
late 13c. (in Anglo-Latin); c. 1200 as a surname, "messenger, envoy," from Anglo-French heraud, Old French heraut, hiraut (12c.), perhaps from Frankish *hariwald "commander of an army," from Proto-Germanic *harja "army" (from PIE root *koro- "war;" see harry) + *waldaz "to command, rule" (see wield). The form fits, but the sense evolution is difficult to explain, unless in reference to the chief officer of a tournament, who introduced knights and made decisions on rules (which was one of the early senses, often as heraud of armes, though not the earliest in English).
herald (v.)youdaoicibaDictYouDict
late 14c., "to sound the praises of," from herald (n.). Related: Heralded; heralding.