Definitions

from The American Heritage® Dictionary of the English Language, 5th Edition.

  • prefix Earlier; before; prior to.
  • prefix Rudimentary.
  • prefix Anterior; in front of.
  • prefix Acting in the place of; substituting for.
  • prefix Supporting; favoring.

Etymologies

from The American Heritage® Dictionary of the English Language, 4th Edition

[Middle English, from Old French, from Greek, from pro, before, in front; see per in Indo-European roots.]

from The American Heritage® Dictionary of the English Language, 4th Edition

[Middle English, from Old French, from Latin pro-, prō-, from prō, for; see per in Indo-European roots.]

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Examples

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