-lithsuff.1. Rock; stone: xenolith.2. Stone implement or structure: megalith.3. Mineral concretion; calculus: cystolith.[From Greek lithos, stone.]American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.-lith n combining form indicating stone or rock: megalith. Compare -lite [from Greek lithos stone]Collins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014lith- var. of litho-: lithops. -lith a combining form meaning ?stone? (megalith), ?stone tool? ( microlith), ?mass of rock? (batholith; laccolith), ?calcareous concretion, calculus? ( otolith; urolith).Compare -lite. [see litho-] Lith. or Lith, 1. Lithuania. 2. Lithuanian. lith. 1. lithograph. 2. lithographic. 3. lithography. Random House Kernerman Webster’s College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.