Yeah, yea and yay
by Kate Asbury Larkin
Yeah (yeh): A casual way to say yes.
“Yeah, I was the one who called you.”
Yea: Affirmative, as in a vote – or the 23rd Psalm. 
“All in favor, say “yea.”
“Yea, though I walk through the valley of the shadow of death…”
Yay: Expressing triumph, excitement or joy,
“Yay for football season!” 
