philosophy vs philosophize

philosophy is a noun but philosophize is not a noun.

Word	Noun	Adjective	Verb	Adverb
philosophy	Yes	No	No	No
philosophize	No	No	Yes	No

philosophy (noun)	philosophize (noun)
the rational investigation of questions about existence and knowledge and ethics
a belief (or system of beliefs) accepted as authoritative by some group or school
any personal belief about how to live or how to deal with a situation

philosophy (verb)	philosophize (verb)
	reason philosophically