wimple vs headdress

wimple and headdress both are nouns.

Word	Noun	Adjective	Verb	Adverb
wimple	Yes	No	No	No
headdress	Yes	No	No	No

As nouns, headdress is a hypernym of wimple; that is, headdress is a word with a broader meaning than wimple:

wimple: headdress of cloth; worn over the head and around the neck and ears by medieval women
headdress: clothing for the head

Other hypernyms of wimple include headgear.

wimple (noun)	headdress (noun)
headdress of cloth; worn over the head and around the neck and ears by medieval women	clothing for the head