lightness vs legerity

lightness and legerity both are nouns.

Word	Noun	Adjective	Verb	Adverb
lightness	Yes	No	No	No
legerity	Yes	No	No	No

As nouns, lightness and legerity are synonyms defined as:

lightness and legerity: the gracefulness of a person or animal that is quick and nimble

Other synonyms of lightness include agility, lightsomeness, nimbleness.

lightness (noun)	legerity (noun)
the trait of being lighthearted and frivolous	the gracefulness of a person or animal that is quick and nimble
the visual effect of illumination on objects or scenes as created in pictures
the property of being comparatively small in weight
having a light color
the gracefulness of a person or animal that is quick and nimble
a feeling of joy and pride