halcyon

(noun) (Greek mythology) a woman who was turned into a kingfisher. Synonyms: Alcyone, Halcyon.

(noun) a large kingfisher widely distributed in warmer parts of the Old World. Synonyms: Halcyon, genus Halcyon.

(noun) a mythical bird said to breed at the time of the winter solstice in a nest floating on the sea and to have the power of calming the winds and waves.

(adj) idyllically calm and peaceful; suggesting happy tranquillity. Example: "A halcyon atmosphere."

(adj) marked by peace and prosperity. Synonyms: golden, prosperous. Examples: "A golden era." "The halcyon days of the clipper trade."