sponsoryoudaoicibaDictYouDict
sponsor: [17] Etymologically, a sponsor is someone who makes a ‘solemn promise’. The word was borrowed from Latin sponsor, a derivative of spondēre ‘promise solemnly’, which denoted ‘someone who stands surely for another’. In the Christian era it came to be used for a ‘godparent’, which was its original sense in English. From the same source come English despond, respond, spouse, and probably spontaneous [17].
=> despond, respond, spontaneous, spouse
sponsor (n.)youdaoicibaDictYouDict
1650s, from Late Latin sponsor "sponsor in baptism," in Latin "a surety, guarantee, bondsman," from sponsus, past participle of spondere "give assurance, promise solemnly" (see spondee). Sense of "person who pays for a radio (or, after 1947, TV) program" is first recorded 1931.
sponsor (v.)youdaoicibaDictYouDict
1884, "to favor or support," from sponsor (n.). Commercial broadcasting sense is from 1931. Related: Sponsored; sponsoring.