The spelling of the word "wiater" can be a bit tricky, as it is not a commonly used word in English. The correct way to spell it is [ˈwaɪtər], with the "w" pronounced as in "why", the "ai" pronounced as in "high", and the final "er" pronounced as in "her". This word is a variation of the word "witer", which means a weather forecast, and has its roots in Old English. It is not commonly used today, but may be encountered in literature or historical texts.