From en.wiktionary.org:
** English
*** Etymology
First attested in the 1910s in the US Northeast. Likely from [en], dialectal form of [de], or [en], dialectal form of [yi], although some dictionaries give the alternative etymology [en].
*** Pronunciation
- [en] - [en]
*** Noun
[en-noun]
1. [en] A scatterbrained or stupid person . 2. * {{ quote-book | en | year=1918 | author=State Bar Association of Connecticut | title=Annual Report | page=82 |passage=If you don't remember you are a NITWIT. If you do answer, well, you know what the penalty is for perjury.}}
1. * [en] 2. * [en]
**** Synonyms
- See also Thesaurus:fool
**** Translations
[scatterbrained or stupid person]
- Bulgarian: [bg] - German: [de] , [de] - Italian: [it] - Maori: [mi] , [mi] , [mi] , [mi] - Polish: [pl] - Serbo-Croatian: [sh] , [sh] , [sh] , [sh] - Turkish: [tr] [trans-bottom]
[en] [en]