わい

emphatic sentence-final particle (adds force or insistence)

β̞ a̠ i
particle Rare #38,870
emphatic sentence-final particle (adds force or insistence) Colloquial and often rough or masculine-sounding; it can also sound old-fashioned or regional.
JA: そんなことは知ってるわい。
EN: Of course I know that.

私こんなにおそくまで外出歩いたことないわい。

I've never stayed out this late before.

聞こえるわい

I can hear you, you know.

— 天空の城ラピュタ (1986)

そらこっちが聞きたいわい

That's what I want to know!

— Love Letter (1995)

お前らにはたっぷり縄をくれてやるわい

I'll give you plenty of rope, you lot.

— 天空の城ラピュタ (1986)

Sounds similar to