THEREUPON

There′up‐on″ (?), adv. 1. 1. Upon that or this; thereon. “They shall feed thereupon.” Zeph. ii. 7.
2. 2. On account, or in consequence, of that; therefore.
hopes to find you forward, . . . And thereupon he sends you this good news. Shak. 3. 3. Immediately; at once; without delay.