chew over vs cogitate

chew over and cogitate both are verbs.

Word	Noun	Adjective	Verb	Adverb
chew over	No	No	Yes	No
cogitate	No	No	Yes	No

As verbs, cogitate is a hypernym of chew over; that is, cogitate is a word with a broader meaning than chew over:

chew over: reflect deeply on a subject
cogitate: use or exercise the mind or one's power of reason in order to make inferences, decisions, or arrive at a solution or judgments

Other hypernyms of chew over include cerebrate, think.

As verbs, cogitate is a hyponym of chew over; that is, cogitate is a word with a more specific, narrower meaning than chew over:

chew over: reflect deeply on a subject
cogitate: consider carefully and deeply; reflect upon; turn over in one's mind

Other hyponyms of chew over include premeditate, theologise, theologize, introspect, bethink, question, wonder, puzzle, consider, study.

chew over (verb)	cogitate (verb)
reflect deeply on a subject	use or exercise the mind or one's power of reason in order to make inferences, decisions, or arrive at a solution or judgments
	consider carefully and deeply; reflect upon; turn over in one's mind