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v. e·rod·ed, e·rod·ing, e·rodes
1. To wear (something) away by erosion: Waves eroded the shore.
2. To eat into or eat away the substance of: Acidic water erodes pipes. Arthritis had eroded the cartilage.
3. To make or form by wearing away: The river eroded a deep valley.
4. To cause to diminish or deteriorate: "Long enduring peace often erodes popular resolution" (C.L. Sulzberger).
1. To become worn or eaten away: The cliffs have eroded over the centuries.
2. To diminish or deteriorate: Public confidence in the administration eroded.
[Latin ērōdere, to gnaw off, eat away : ē-, ex-, ex- + rōdere, to gnaw; see rēd- 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.