squarer

From square + -er.

squarer

1. comparative form of square: more square

squarer (plural squarers)

1. One who, or that which, squares.
2. (obsolete) Quarreler, wrangler.
   • 1598–1599 (first performance), William Shakespeare, “Much Adoe about Nothing”, in Mr. William Shakespeares Comedies, Histories, & Tragedies […] (First Folio), London: […] Isaac Iaggard, and Ed[ward] Blount, published 1623, →OCLC, [Act I, scene i]:

     But, I pray you, who is his companion? Is there no young squarer now that will make a voyage with him to the devil?