pandiculation vs oscitancy

pandiculation and oscitancy both are nouns.

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

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

pandiculation: yawning and stretching (as when first waking up)
oscitancy: an involuntary intake of breath through a wide open mouth; usually triggered by fatigue or boredom

Other hypernyms of pandiculation include stretch, stretching, oscitance, yawn, yawning.

pandiculation (noun)	oscitancy (noun)
yawning and stretching (as when first waking up)	an involuntary intake of breath through a wide open mouth; usually triggered by fatigue or boredom
	drowsiness and dullness manifested by yawning