Wrote Charles Caleb Colton in "Lacon: Or, Many Things in Few Words : Addressed to Those who Think," in 1820:

That's quoted at the OED definition for "etiolate," which means "To lessen or undermine the strength, vigour, or effectiveness of (a quality, group, movement, etc.); to have a weakening effect upon."
That's the second meaning. The oldest meaning is about plants: "To cause (a plant) to develop with reduced levels of chlorophyll (esp. by restricting light), causing bleaching of the green tissues, elongated internodes, weakened stems, deficiencies in vascular structure, and abnormally small leaves."
You take the plant out of the sun to etiolate it, but the woman needs to be kept out of the sun, lest she etiolate. So said Colton, anyway. He was one of the "boys" referenced in the more recent aphorism: "Some boys take a beautiful girl and hide her away from the rest of the world/I want to be the one to walk in the sun...." The sun, Colton.
But C.C. Colton is long gone. He died in 1832 — forever excluded from the sun — died of suicide, committed because, we're told, he had an illness that required surgery, and he dreaded surgery.
I'm reading about the word "etiolated" because I used it yesterday: "I'm collecting examples of this avoidance of the word 'woman' and the resultant etiolation of speech."