parlormaid vs parlourmaid

parlormaid and parlourmaid both are nouns.

Word	Noun	Adjective	Verb	Adverb
parlormaid	Yes	No	No	No
parlourmaid	Yes	No	No	No

As nouns, parlormaid and parlourmaid are synonyms defined as:

parlormaid and parlourmaid: a maid in a private home whose duties are to care for the parlor and the table and to answer the door

parlormaid (noun)	parlourmaid (noun)
a maid in a private home whose duties are to care for the parlor and the table and to answer the door	a maid in a private home whose duties are to care for the parlor and the table and to answer the door