1. Meteorological Connection:
* This theory suggests the phrase comes from the unexpected appearance of a blue sky after a storm. The blue sky would be "out of the blue" because it was hidden by the clouds.
2. Color Symbolism:
* Blue has been associated with calmness, peace, and serenity in many cultures. Something appearing "out of the blue" could signify an unexpected event that disrupts this tranquility, making it feel jarring and surprising.
3. Naval Origins:
* Another theory connects the phrase to sailing. Sailors might have used "out of the blue" to describe the unexpected appearance of a ship on the horizon, particularly in the vastness of the open ocean.
4. Literary Evolution:
* The phrase might have gradually evolved through literary usage, with writers using it to describe sudden, unexpected occurrences. Early uses of the phrase can be found in English literature from the 17th century onwards.
5. Folklore and Myth:
* Some believe the phrase draws from folklore and mythology, where sudden appearances or miracles were often attributed to divine intervention, such as a god emerging from the clouds or a celestial being descending from the sky.
In Conclusion:
While the exact origin remains uncertain, the phrase "out of the blue" has gained widespread use to describe unexpected events or occurrences. Its meaning seems to stem from the combination of surprise, the suddenness of the event, and the unexpectedness of its appearance.