"In the Book of Enoch it says that the leader of the fallen angels was called Azazel, and he is often identified with Lucifer (the Lightbringer) or Lumiel ('the light of God'). He taught men to forge swords and make shields and breastplates (body armor).
Azazel also taught them metallurgy and how to mine from the earth and use different metals. To the women he taught the art of making bracelets, ornaments, rings and necklaces from precious metals and stones. He also showed them how to 'beautify their eyelids' with kohl and the use of cosmetic tricks to attract and seduce the opposite sex."
https://www.bibliotecapleyades.net/vida_alien/alien_watchers34.htm
From these practices Enoch says there came much 'godlessness' and men and women committed fornication, were led astray and became corrupt in their ways.
"They teach humans “magical medicines, incantations, the cutting of roots and about plants.” The origin of folk-medicine is therefore ascribed to these angelic beings."
https://readingacts.com/2016/05/31/the-fallen-angels-1-enoch-6-8/
"The Watchers teach people secret arts such as magical medicine, incantations, and knowledge of plants and herbs. AZAZEL teaches the art of making weapons of war, jewelry, and cosmetics, and dye making and alchemy. Amasras teaches plant lore and how to perform magic. Baraqiyal teaches astrology, Kokarerel teaches the zodiac, Tamel teaches about the stars, and Asderel teaches about the Moon and the deception of humans."
https://occult-world.com/watchers/