ptyalize vs expectorate

ptyalize and expectorate both are verbs.

Word	Noun	Adjective	Verb	Adverb
ptyalize	No	No	Yes	No
expectorate	No	No	Yes	No

As verbs, expectorate is a hypernym of ptyalize; that is, expectorate is a word with a broader meaning than ptyalize:

ptyalize: expel or eject (saliva or phlegm or sputum) from the mouth
expectorate: discharge (phlegm or sputum) from the lungs and out of the mouth

Other hypernyms of ptyalize include cough out, cough up, spit out, spit up.

ptyalize (verb)	expectorate (verb)
expel or eject (saliva or phlegm or sputum) from the mouth	discharge (phlegm or sputum) from the lungs and out of the mouth
	clear out the chest and lungs