The Collaborative International Dictionary
Therewhile
Therewhile \There*while"\, adv.
At that time; at the same time. [Obs.]
--Laud.
Wiktionary
therewhile
adv. (context obsolete English) At that time; at the same time
Usage examples of "therewhile".
And therewhile she rode unto the Lady Ettard, and charged no man to awake him till she came again.