plant is a noun but etiolate is not a noun.

plant is not an adjective while etiolate is an adjective.

plant and etiolate both are verbs.

plant (noun)	etiolate (noun)
buildings for carrying on industrial labor
(botany) a living organism lacking the power of locomotion
an actor situated in the audience whose acting is rehearsed but seems spontaneous to the audience
something planted secretly for discovery by another

plant (adjective)	etiolate (adjective)
	(especially of plants) developed without chlorophyll by being deprived of light

plant (verb)	etiolate (verb)
put or set (seeds, seedlings, or plants) into the ground	make weak by stunting the growth or development of
fix or set securely or deeply	bleach and alter the natural development of (a green plant) by excluding sunlight
set up or lay the groundwork for	make pale or sickly
place into a river
place something or someone in a certain position in order to secretly observe or deceive
put firmly in the mind