interjection
Dated exclamation of mild surprise, dismay, or resignation. Not used in modern everyday speech.
いやさ、こんなことになるとは思わなかったよ。
Oh my, I never thought it would come to this.
interjection
Dated filler used to rephrase or correct oneself, similar to 'I mean' or 'or rather'. Not used in modern conversation.
彼は、いやさ、あの人はとても親切だった。
He, or rather, that person was very kind.