auspicious omen; good omen
A formal or literary term for a sign or phenomenon believed to foretell good fortune. Not an everyday word; more common in historical or mythological contexts.
In ancient China, the appearance of a phoenix was considered an auspicious omen.
From Chinese 奇瑞 (qíruì), composed of 奇 'strange, wonderful' and 瑞 'auspicious, lucky'. The exact historical derivation is uncertain; the spelling is conventionally associated with the meaning.