broider vs purl

broider is not a noun while purl is a noun.

Word	Noun	Adjective	Verb	Adverb
broider	No	No	Yes	No
purl	Yes	No	Yes	No

As verbs, purl is a hyponym of broider; that is, purl is a word with a more specific, narrower meaning than broider:

Other hyponyms of broider include faggot, fagot.

broider (noun)	purl (noun)
	a basic knitting stitch made by putting the needle through the front of the stitch from the righthand side
	gold or silver wire thread

broider (verb)	purl (verb)
decorate with needlework	make a murmuring sound
	embroider with gold or silver thread
	edge or border with gold or silver embroidery
	knit with a purl stitch
	flow in a circular current, of liquids