esthesis vs aesthesis

esthesis and aesthesis both are nouns.

Word	Noun	Adjective	Verb	Adverb
esthesis	Yes	No	No	No
aesthesis	Yes	No	No	No

As nouns, esthesis and aesthesis are synonyms defined as:

esthesis and aesthesis: an unelaborated elementary awareness of stimulation

Other synonyms of esthesis include sensation, sense datum, sense experience, sense impression.

esthesis (noun)	aesthesis (noun)
an unelaborated elementary awareness of stimulation	an unelaborated elementary awareness of stimulation