etiolation vs phytology

etiolation and phytology both are nouns.

Word	Noun	Adjective	Verb	Adverb
etiolation	Yes	No	No	No
phytology	Yes	No	No	No

etiolation (noun)	phytology (noun)
(botany) the act of causing a plant to develop without chlorophyll by growing it without exposure to sunlight	the branch of biology that studies plants
the act of weakening by stunting the growth or development of something
a pale and sickly appearance