oscitancy vs yawn

oscitancy and yawn both are nouns.

Word	Noun	Adjective	Verb	Adverb
oscitancy	Yes	No	No	No
yawn	Yes	No	Yes	No

As nouns, oscitancy and yawn are synonyms defined as:

oscitancy and yawn: an involuntary intake of breath through a wide open mouth; usually triggered by fatigue or boredom

Other synonyms of oscitancy include oscitance, yawning.

oscitancy (noun)	yawn (noun)
an involuntary intake of breath through a wide open mouth; usually triggered by fatigue or boredom	an involuntary intake of breath through a wide open mouth; usually triggered by fatigue or boredom
drowsiness and dullness manifested by yawning

oscitancy (verb)	yawn (verb)
	utter a yawn, as from lack of oxygen or when one is tired
	be wide open