sentiency vs sensation

sentiency and sensation both are nouns.

Word	Noun	Adjective	Verb	Adverb
sentiency	Yes	No	No	No
sensation	Yes	No	No	No

As nouns, sentiency and sensation are synonyms defined as:

sentiency and sensation: the faculty through which the external world is apprehended

Other synonyms of sentiency include sense, sensory faculty, sentience.

sentiency (noun)	sensation (noun)
the faculty through which the external world is apprehended	an unelaborated elementary awareness of stimulation
	the faculty through which the external world is apprehended
	a general feeling of excitement and heightened interest
	someone who is dazzlingly skilled in any field
	a state of widespread public excitement and interest