The term 86 (to get rid of someone or something) entered the English language as part of a restaurant code.
Gundacker, R. 2011 On the Etymology of the Egyptian Crown Name
What Does 86 Mean? Definition, History and More
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What Does 'Eighty-Six' Mean?
The Concise Oxford Dictionary of English Etymology (Oxford
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Language Archives, Page 3
What Does 86 Mean? Definition, History and More
MAURA TOBIN - High School Latin and Etymology Teacher and
86-Stafford County Area: 699 km2 Population: 142,003 County seat
Folk Etymology Archives