lowness vs lowliness

lowness and lowliness both are nouns.

Word	Noun	Adjective	Verb	Adverb
lowness	Yes	No	No	No
lowliness	Yes	No	No	No

As nouns, lowness and lowliness are synonyms defined as:

lowness and lowliness: a position of inferior status; low in station or rank or fortune or estimation

Other synonyms of lowness include low status.

lowness (noun)	lowliness (noun)
the quality of being low; lacking height	a position of inferior status; low in station or rank or fortune or estimation
a low or small degree of any quality (amount or force or temperature etc.)	the state of being humble and unimportant
a feeling of low spirits
a position of inferior status; low in station or rank or fortune or estimation