saymaster

From say +‎ master.

saymaster (plural saymasters)

1. (obsolete) Someone who tries or tests something, such as products, to check their quality.
   • 1640, Ben Jonson, Epithalamion:

     great say-master of state

• “saymaster”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.

• mast years