lag vs lagger

lag and lagger both are nouns.

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

lag (noun)	lagger (noun)
the act of slowing down or falling behind	someone who takes more time than necessary; someone who lags 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

lag (verb)	lagger (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