- The definition of hast is an old way of saying have or had.
An example of hast is how the writings in the Bible say the word have; thou hast.
hast definition by Webster's New World
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
Archaic have: used with thou
hast definition by American Heritage Dictionary
Second person singular present tense of have.