\There`up*on"\, adv.
1. Upon that or this; thereon. ``They shall feed thereupon.''
   --Zeph. ii. 7.
2. On account, or in consequence, of that; therefore.
         [He] hopes to find you forward, . . . And thereupon
         he sends you this good news.          --Shak.
3. Immediately; at once; without delay.