The Collaborative International Dictionary
Undersign \Un`der*sign"\, v. t. To write one's name at the foot or end of, as a letter or any legal instrument.
The undersigned, the person whose name is signed, or the persons whose names are signed, at the end of a document; the subscriber or subscribers.
Usage examples of "the undersigned".
This would state that it had come to the undersigned's (Colonel Porter's) attention that, in disobedience to Letter Order so and so, of such and such a date, the individual had been observed in the Officers' Club during duty hours consuming intoxicating beverages.
If the personnel to conduct this new activity can be recruited almost entirely from new resources it would be the judgment of the undersigned that the entire spirit and plan of employment of the Commando groups is directly in line with the aggressive spirit of the Marine Corps, that it will add immeasurably to the fame and prestige of the Corps, and must inevitably attract to our ranks the most adventurous and able spirits of America's manhood.
Should his bona fides be doubted in any way the undersigned should be consulted immediately before further action is taken with regard to the bearer.