a strophe, stanza, or poem consisting of three lines.
Origin of tristich
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
prosody a poem, stanza, or strophe that consists of three lines
Word Origin for tristich
C19: from Greek, from tri- + stikhos stich, on the model of distich
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