The correct spelling of "blotting outs" is /ˈblɒtɪŋ aʊts/. This phrase refers to a process of erasing or eliminating something from existence. "Blotting" is spelled with double "t"s to represent the aspirated /t/ sound at the end of the word, which contrasts with the unaspirated /t/ in the word "bot". "Outs" is spelled with a silent "gh" to represent the /aʊ/ diphthong, as in the word "loud". The correct spelling is important for clarity in written communication.
There is no direct etymology for the phrase "blotting outs" since it seems to be a combination of two separate words.
1. "Blotting": The word "blotting" is the present participle form of the verb "blot". Its etymology can be traced back to the Old Norse word "blauta" meaning "to make wet". Over time, it developed into Middle English and took on the meaning of "to remove or make an impression on a surface" or "to stain".
2. "Outs": The word "outs" is the plural form of the noun "out". Its etymology can be traced to numerous Proto-Germanic languages and has roots in Old English, Old Norse, and Old High German. The general meaning of "out" is "outside" or "not within".