1. (a.) Coming tardily after or behind; slow; tardy.

2. (a.) Last; long-delayed; -- obsolete, except in the phrase lag end.

3. (a.) Last made; hence, made of refuse; inferior.

4. (n.) One who lags; that which comes in last.

5. (n.) The fag-end; the rump; hence, the lowest class.

6. (n.) The amount of retardation of anything, as of a valve in a steam engine, in opening or closing.

7. (n.) A stave of a cask, drum, etc.; especially (Mach.), one of the narrow boards or staves forming the covering of a cylindrical object, as a boiler, or the cylinder of a carding machine or a steam engine.

8. (n.) See Graylag.

9. (v. i.) To walk or more slowly; to stay or fall behind; to linger or loiter.

10. (v. t.) To cause to lag; to slacken.

11. (v. t.) To cover, as the cylinder of a steam engine, with lags. See Lag, n., 4.

12. (n.) One transported for a crime.

13. (v. t.) To transport for crime.