filiation vs pedigree

filiation and pedigree both are nouns.

Word	Noun	Adjective	Verb	Adverb
filiation	Yes	No	No	No
pedigree	Yes	Yes	No	No

As nouns, pedigree is a hyponym of filiation; that is, pedigree is a word with a more specific, narrower meaning than filiation:

Other hyponyms of filiation include descent, extraction, origin, bloodline.

filiation (noun)	pedigree (noun)
inherited properties shared with others of your bloodline	ancestry of a purebred animal
the kinship relation between an individual and the individual's progenitors	the hereditary derivation of an individual
	line of descent of a purebred animal

filiation (adjective)	pedigree (adjective)
	having a list of ancestors as proof of being a purebred animal