Avoid the month Lenaeon, wretched days, all of them fit to skin an ox, and the frosts which are cruel when Boreas blows over the earth. He blows across horse-breeding Thrace upon the wide sea and stirs it up, while earth and the forest howl. On many a high-leafed oak and thick pine he falls and brings them to the bounteous earth in mountain glens: then all the immense wood roars and the beasts shudder and put their tails between their legs, even those whose hide is covered with fur; for with his bitter blast he blows even through them although they are shaggy breasted. But through the fleeces of sheep, because their wool is abundant, the keen wind Boreas pierces not at all; but it makes the old man curved as a wheel.

And it does not blow through the tender maiden who stays indoors with her dear mother, unlearned as yet in the works of golden Aphrodite, and who washes her soft body and anoints herself with oil and lies down in an inner room within the house, on a winter’s day when the Boneless One gnaws his foot in his fireless house and wretched home; for the sun shows him no pastures to make for, but goes to and fro over the land and city of dusky men, and shines more sluggishly upon the whole race of the Hellenes.

Hesiod, Works and Days
Lenaeon: late January and early February
Boreas: the north wind
Boneless One: the octopus or cuttlefish
https://coldewey.cc/2009/09/avoid-the-month-lenaeon-wretched-days-all-of/ ยป