Alter Definition

altered, altering, alters
altered, altering, alters
To change or make different; modify.
Altered my will.
American Heritage
To make different in details but not in substance; modify.
Webster's New World
To become different; change; vary.
Webster's New World
To adjust (a garment) for a better fit.
American Heritage
To resew parts of (a garment) for a better fit.
Webster's New World

Origin of Alter

  • From Old French alterer (French altérer), from Medieval Latin alterare (“to make other”), from Latin alter (“the other”), from al- (seen in alius (“other”), alienus (“of another”), etc.; see alias, alien, etc.) + compar. suffix -ter.

    From Wiktionary

  • Middle English alteren from Old French alterer from Medieval Latin alterāre from Latin alter other al-1 in Indo-European roots

    From American Heritage Dictionary of the English Language, 5th Edition

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