moniker

or mon·ick·er

[ mon-i-ker ]
/ ˈmɒn ɪ kər /

noun Slang.

a person's name, especially a nickname or alias.

Origin of moniker

1850–55; probably < Shelta mŭnnik name (alleged to be a permutation and extension of Irish ainm name); final -er may represent -er1 or, as a spelling of ə, simply release of the k
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British Dictionary definitions for moniker

moniker

monicker

/ (ˈmɒnɪkə) /

noun

slang a person's name or nickname

Word Origin for moniker

C19: from Shelta munnik, altered from Irish ainm name
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012