I've read the whole story of verbing nouns from today's word and then came etiolate. I still try to find which noun this verb came from as the introduction promised. Is it somewhere? Could someone please tell where I missed it?

etiolate
MEANING:
verb tr.:
1. To make pale by preventing exposure to sunlight.
2. To make weak by stunting the growth of.
verb intr.:
3. To become pale, weak, or stunted.

ETYMOLOGY:
From French étioler (to make pale), from Latin stipula (straw). Earliest documented use: 1791.