Where does “etiolate” come from?

etiolate (English) comes from French étiolé, from French étioler, from French étieuler, from Old French estuble, from Latin stipula, from Proto-Italic stipelā, from Proto-Italic stips, from Proto-Indo-European steyp- — be stiff, erect; to be stiff; erect; stiff, erect.

etiolate (English): To make pale through lack of light, especially of...