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Origin of dinkum
First recorded in 1890–95; of obscure origin
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for dinkum
Historical Examples of dinkum
adjective Australian and NZ informal
genuine or righta dinkum bloke
fair dinkum genuine or true: used to emphasize the truth of something or in asking for the truth of something to be confirmedBack to the states? Fair dinkum?
dinkum oil archaic the truth
Word Origin for dinkum
C19: from English dialect: work, of unknown origin
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
1888, "hard work," Australian slang, of unknown origin, perhaps connected to Lincolnshire dialect. Meaning "honest, genuine" is attested from 1894.
Online Etymology Dictionary, © 2010 Douglas Harper