legging vs leg covering

legging and leg covering both are nouns.

Word	Noun	Adjective	Verb	Adverb
legging	Yes	No	No	No
leg covering	Yes	No	No	No

As nouns, legging and leg covering are synonyms defined as:

legging and leg covering: a garment covering the leg (usually extending from the knee to the ankle)

Other synonyms of legging include leging.

legging (noun)	leg covering (noun)
a garment covering the leg (usually extending from the knee to the ankle)	a garment covering the leg (usually extending from the knee to the ankle)