Yare yare is not onomatopoeia. As seen [url=http://jisho.org/search/%E3%82%84%E3%82%8C%E3%82%84%E3%82%8C%E3%81%A0%E3%81%9C]here.[/url]

You could also opt to ask someone who speaks Japanese.
Like me.
It's not.