THEREUPON
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.
THEREWHILE
There*while", adv.
Defn: At that time; at the same time. [Obs.] Laud.
THEREWITH
There*with", adv.
1. With that or this. "I have learned in whatsoever state I am, therewith to be content." Phil. iv. 11.
2. In addition; besides; moreover. To speak of strength and therewith hardiness. Chaucer.
3. At the same time; forthwith. [Obs.] Johnson.