oscitancy vs innate reflex

oscitancy and innate reflex both are nouns.

Word	Noun	Adjective	Verb	Adverb
oscitancy	Yes	No	No	No
innate reflex	Yes	No	No	No

As nouns, innate reflex is a hypernym of oscitancy; that is, innate reflex is a word with a broader meaning than oscitancy:

oscitancy: an involuntary intake of breath through a wide open mouth; usually triggered by fatigue or boredom
innate reflex: an automatic instinctive unlearned reaction to a stimulus

oscitancy (noun)	innate reflex (noun)
an involuntary intake of breath through a wide open mouth; usually triggered by fatigue or boredom	an automatic instinctive unlearned reaction to a stimulus
drowsiness and dullness manifested by yawning