throw back

throw back idiom
  1. Hinder the progress of, check, as in His illness threw his schooling back a year, or The troops were thrown back by a barrage of fire. [First half of 1800s]
  2. Revert to an earlier type or stage, as in That dog throws back to his wolf ancestors. This usage gave rise to the noun throwback, a reversion to a former stage or type. [Second half of 1800s]
  3. throw back on. Cause to depend on, make reliant on, as in When the violinist didn't show up, they were thrown back on the pianist. [Mid-1800s]

The American Heritage® Dictionary of Idioms by Christine Ammer. Copyright © 2003, 1997 by The Christine Ammer 1992 Trust. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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