full blood vs origin

full blood and origin both are nouns.

Word	Noun	Adjective	Verb	Adverb
full blood	Yes	No	No	No
origin	Yes	No	No	No

As nouns, origin is a hypernym of full blood; that is, origin is a word with a broader meaning than full blood:

Other hypernyms of full blood include descent, extraction.

full blood (noun)	origin (noun)
descent from parents both of one pure breed	properties attributable to your ancestry
	the point of intersection of coordinate axes; where the values of the coordinates are all zero
	an event that is a beginning; a first part or stage of subsequent events
	the hereditary derivation of an individual
	the place where something begins, where it springs into being
	the source of something's existence or from which it derives or is derived