lag

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

meanwhile the socialists are running the government

cover with lagging to prevent heat loss

lag pipes

throw or pitch at a mark, as with coins

hang (back) or fall (behind) in movement, progress, development, etc.

lock up or confine, in or as in a jail

The suspects were imprisoned without trial

the murderer was incarcerated for the rest of his life