also: わえ
particle
sentence-ending particle expressing emotion (mainly masculine)
Used at the end of a sentence to add emotional emphasis, similar to わ but with a more old-fashioned or dialectal masculine feel. Often heard in older male speech or certain regional dialects.
See also: わ
もう行くわい。
I'm going now, you know.
それはええ考えじゃわい。
That's a good idea, indeed.