laggard vs lag

laggard and lag both are nouns.

Word	Noun	Adjective	Verb	Adverb
laggard	Yes	Yes	No	No
lag	Yes	No	Yes	No

laggard (noun)	lag (noun)
someone who takes more time than necessary; someone who lags behind	the act of slowing down or falling behind
	one of several thin slats of wood forming the sides of a barrel or bucket
	the time between one event, process, or period and another

laggard (adjective)	lag (adjective)
wasting time

laggard (verb)	lag (verb)
	throw or pitch at a mark, as with coins
	cover with lagging to prevent heat loss
	hang (back) or fall (behind) in movement, progress, development, etc.
	lock up or confine, in or as in a jail