Correct spelling for the English word "un say" is [ˈʌn sˈe͡ɪ], [ˈʌn sˈeɪ], [ˈʌ_n s_ˈeɪ] (IPA phonetic alphabet).
"Unsay" is not found in traditional English dictionaries as it is a non-standard term that originated from Philippine English, specifically in the Visayan and Cebuano languages. In these dialects, "unsay" serves as an equivalent to the English word "what."
"Unsay" is a contraction of two words: "un" meaning "unaswered" or "unknown" and "say" meaning "speak" or "tell." When combined, it forms a phrase that prompts someone to provide information or clarification about something that is not readily known or understood.
In informal settings, "unsay" is commonly used as a question word to inquire about the identity, nature, or description of something. For example, a person may ask, "Unsay ngalan nimo?" which translates to "What is your name?" It can also be used to request an explanation or an elaboration on a previously mentioned topic. For instance, one might inquire, "Unsay gisulti sa mayor?" which means "What did the mayor say?"
Due to its limited usage to specific regional dialects, "unsay" may not be widely recognized or understood outside of the Philippines, particularly in areas where these dialects are not spoken.