coarsen

[ kawr-suh n, kohr- ]
/ ˈkɔr sən, ˈkoʊr- /

verb (used with or without object)

to make or become coarse.

Origin of coarsen

First recorded in 1795–1805; coarse + -en1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for coarsen

coarsen
/ (ˈkɔːsən) /

verb

to make or become coarse
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