omenyoudaoicibaDictYouDict[omen 词源字典]
omen: [16] Omen was a direct borrowing from Latin ōmen, whose derivative ōminōsus also gave English ominous [16]. From the same source comes abominable.
=> abominable, ominous[omen etymology, omen origin, 英语词源]
omen (n.)youdaoicibaDictYouDict
1580s, from Latin omen "foreboding," from Old Latin osmen, of unknown origin; perhaps connected with the root of audire "to hear" [OED] or from PIE *o- "to believe, hold as true" (cognates: Greek oiomai "I suppose, think, believe").