GRC

οὐ μάν

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LSJ

assuredly not, prop. Dor., Aeol., etc. for Ion.-Att. οὐ μήν, also used in Hom., who has οὐ μὰν οὐδέ, v. οὐδέ C. II, οὐ μήν.
Liddell-Scott-Jones, Greek-English Lexicon (9th ed., 1940)
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