1. One who assumes responsibility for another person or a group during a period of instruction, apprenticeship, or probation.
2. One who vouches for the suitability of a candidate for admission, as to an organization.
3. A legislator who proposes and urges adoption of a bill.
4. Christianity One who presents a candidate for baptism or confirmation; a godparent.
5. One that finances a project, event, or organization directed by another person or group, such as a business enterprise that pays for radio or television programming in return for advertising time.
tr.v. spon·sored, spon·sor·ing, spon·sors
To act as a sponsor for.
[Late Latin spōnsor, sponsor in baptism, from Latin, surety, from spōnsus, past participle of spondēre, to pledge; see spend- in the Appendix of Indo-European roots.]
spon·sori·al (-sôrē-əl) adj.
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2018 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.