temporizer

From temporize +‎ -er.

temporizer (plural temporizers)

1. A person who temporizes
   • c. 1610–1611 (date written), William Shakespeare, “The Winters Tale”, in Mr. William Shakespeares Comedies, Histories, & Tragedies […] (First Folio), London: […] Isaac Iaggard, and Ed[ward] Blount, published 1623, →OCLC, [Act I, scene ii]:

     I pronounce thee a hovering temporizer, that Canst with thine eyes at once see good and evil, Inclining to them both.