leg covering vs gaiter

leg covering and gaiter both are nouns.

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

As nouns, gaiter is a hyponym of leg covering; that is, gaiter is a word with a more specific, narrower meaning than leg covering:

leg covering: a garment covering the leg (usually extending from the knee to the ankle)
gaiter: legging consisting of a cloth or leather covering for the leg from the knee to the ankle

Other hyponyms of leg covering include chap, puttee, spat.

leg covering (noun)	gaiter (noun)
a garment covering the leg (usually extending from the knee to the ankle)	legging consisting of a cloth or leather covering for the leg from the knee to the ankle
	a cloth covering (a legging) that covers the instep and ankles
	a shoe covering the ankle with elastic gores in the sides