a member of a small group of persons gathered for formal public discussion, judging, playing a radio or television game, etc.

Origin of panelist

First recorded in 1950–55; panel + -ist Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for panelist

Contemporary Examples of panelist

Historical Examples of panelist

Word Origin and History for panelist

1950, American English, from panel (n.) + -ist. Originally in quiz shows.

Online Etymology Dictionary, © 2010 Douglas Harper