Chaotic spelling was allowed in the period, and it was an archaic comment.

http://www.gutenberg.org/cache/epub/15585/pg15585.txt

"I prithy desist," said the gentleman; "stand aside, and see the effeck
of kindness. I understand the idiosyncracies of these creeturs better
than you do."

http://internetshakespeare.uvic.ca/doc/Leir_Q1/scene/9/

“The History of King Leir” (Quarto, 1605)

Gonorill. . I prithy, Skalliger, tell me what thou thinkst:
Could any woman of our dignity
Endure such quips and peremptory taunts,
As I do daily from my doting father?

That pretty much creates a large hole below the waterline of the rest of your comment.

Well, you can go back to harassing Pandora17.