subs. (common).A new arrival; a fresh face: as a freshman at college; a new midshipman; a new baby. Alse JOHNNIE NEWCOME.
1821. P. EGAN, Life in London, Nocturnal Hells. There were some NEWCOMES. [The name given to any new faces or persons among the usual visitants in a gambling house.]
1823. BADCOCK (Jon Bee), Dictionary of the Turf, etc., s.v. NEWCOME JOHNNY.