origination vs initiation

origination and initiation both are nouns.

Word	Noun	Adjective	Verb	Adverb
origination	Yes	No	No	No
initiation	Yes	No	No	No

As nouns, origination and initiation are synonyms defined as:

origination and initiation: the act of starting something for the first time; introducing something new

Other synonyms of origination include creation, foundation, founding, innovation, instauration, institution, introduction.

origination (noun)	initiation (noun)
the act of starting something for the first time; introducing something new	the act of starting something for the first time; introducing something new
an event that is a beginning; a first part or stage of subsequent events	an act that sets in motion some course of events
	wisdom as evidenced by the possession of knowledge
	a formal entry into an organization or position or office