Assure Definition

assured, assures, assuring
assured, assures, assuring
To inform positively, as to remove doubt.
Assured us that the train would be on time.
American Heritage
To make (a person) sure of something; convince.
Webster's New World
To cause to feel sure.
A gesture that assured her of his devotion.
American Heritage
To give confidence to; reassure.
The news assured us.
Webster's New World
To declare to or promise confidently.
I assure you I'll be there.
Webster's New World

Origin of Assure

  • Middle English assuren from Old French assurer from Vulgar Latin assēcūrāre to make sure Latin ad- ad- Latin sēcūrus secure secure

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

  • From Old French asseürer (Modern French assurer), from Latin ad- + securus (“secure”).

    From Wiktionary

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