HALCYON (2)

Hal″cy‐on, a. 1. 1. Pertaining to, or resembling, the halcyon, which was anciently said to lay her eggs in nests on or near the sea during the calm weather about the winter solstice.
2. 2. Hence: Calm; quiet; peaceful; undisturbed; happy. “Deep, halcyon repose.” De Quincy.