v. un·der·wrote (-rōt′), un·der·writ·ten (-rĭt′n), un·der·writ·ing, un·der·writes
a. To assume financial responsibility for; agree to pay the costs of: underwrite a theatrical production.
b. To supply with funding, especially as a sponsor: underwrite a public television show.
a. To sign (an insurance policy) so as to assume liability in case of specified losses.
b. To insure.
c. To insure against losses totaling (a given amount).
a. To guarantee the purchase of (a full issue of stocks or bonds).
b. To agree to buy the unsold part of (stock not yet sold publicly) at a fixed time and price.
a. To write under or at the end of something.
b. To subscribe to, especially to sign or endorse (a document).
5. To support or agree to (a decision, for example).
To act as an underwriter, especially to issue an insurance policy.
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2020 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Indo-European & Semitic Roots Appendices
Thousands of entries in the dictionary include etymologies that trace their origins back to reconstructed proto-languages. You can obtain more information about these forms in our online appendices:
The Indo-European appendix covers nearly half of the Indo-European roots that have left their mark on English words. A more complete treatment of Indo-European roots and the English words derived from them is available in our Dictionary of Indo-European Roots.