Meanings
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Thesaurus
Simplified etymology
Halcyon entered English in the late Middle English period from Greek alkuōn, “kingfisher.” Medieval tradition held that this bird nested on the sea and calmed the wind and waves while breeding; this belief produced halcyon days for a spell of calm weather, later broadened to an idyllically happy and peaceful period.
Etymology
Inherited from Middle English Alceoun, from Latin halcyōn, alcyōn (“kingfisher”), from Ancient Greek ἀλκυών (alkuṓn).