-phasiasuff. A speech disorder of a specified kind: dysphasia.[Greek -phasi?, speech, from phasis, utterance, from phanai, to say, speak; see bh?- in Indo-European roots.]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.-phasia n combining form (Pathology) indicating speech disorder of a specified kind: aphasia. [from Greek, from phanai to speak] -phasic adj combining form, n combining formCollins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014