Boreas
3 of the 7 encyclopedias on this shelf carry an entry for Boreas. Both are reproduced below, so you can see where they agree and where they differ.
1000 Classical Characters (1900)
The name of the north wind blowing from the Hyperborean mountains. According to the poets, he was son of Astraeus and Aurora . Boreas is said by Homer to have turned himself into a horse out of love for the muses of Ericthonius. (Il. xx. 223.) Bosporus (Oxford). The name of any straits among the Greeks, but especially applied to the Thracian Bosporus (Channel of Constantinople), which unites the Propontis or Sea of Marmora with the Euxine or Black Sea ; and the Cimmerian Bosporus (Straits. of Kaffa), which unites the Palus Maeotis or Sea of Azof with the Euxine or Black Sea. 2026 Editor's Note: Boreas is the Greek god of the cold north wind, storms, and winter. He is often depicted as a winged old man or a young man with shaggy hair and beard. (Ed: BR 2026-06-25)
Collier's New Encyclopedia (1921)
a bellowing wind; the northern wind; a cold northerly wind. In mythology, the son of Astræus and Eos, usually worshipped as the god of the north wind. The assiduity with which the worship of Boreas was cultivated at Athens proceeded from gratitude, the north wind having on one occasion destroyed the fleet of the Persians when meditating the invasion of Attica. A similar cause induced the inhabitants of Megalopolis to consider Boreas as their peculiar divinity, in whose honor they instituted an annual festival. Boreas was usually represented with wings dripping with golden dewdrops, and the train of his garment sweeping along the ground.
Aiton's Encyclopedia (1910)
the north wind. Boreas was reputed to dwell in Thrace from whence his winds reached Greece. A temple was erected in his honor at Athens to commemorate his destruction of the fleet of Xerxes. In art he was represented with wings. His hair and beard were full of flakes of snow. As he flew along, his trailing garments stirred up clouds of dust. See Wind 2026 Editor's Note: Boreas quietly seeded the dictionary: "boreal" for northern forests, "hyperborean" for the far north, and the aurora borealis — the northern dawn — all carry his name, as does the Bora, the fierce cold wind that still tears down the Adriatic coast each winter. (Ed: BR 2026-07-20)