lag vs lagging

lag and lagging both are nouns.

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

lag (noun)	lagging (noun)
the act of slowing down or falling behind	insulation used to wrap around pipes or boilers or laid in attics to prevent loss of heat
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)	lagging (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