The Collaborative International Dictionary
Erewhiles
Erewhile \Ere`while"\, Erewhiles \Ere`whiles"\, adv. Some time ago; a little while before; heretofore. [Archaic]
I am as fair now as I was erewhile.
--Shak.
Wiktionary
erewhiles
adv. (alternative form of erewhile English)