Lat. coccum 'berry'; Gr. κόκκος m. ‘kernel’ etc: etymology unknown, "probably Pre-Greek" according to Beekes. "κόκκος" in: Etymological Dictionary of Greek, edited by: Robert S. P. Beekes (Ph.D. 1969). Consulted online on 03/10/2017 <http://dictionaries.brillonline.com.ludwig.lub.lu.se/search#dictionary=greek&id=gr3680> First published online: October 2010
Robert Farren, PIE culture words collection, 2017
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