Definition of "trenchering"

No more dams I'll make for fish;Nor fetch in firingAt requiring,Nor scrape trenchering, nor wash dish;'Ban 'Ban, Ca—Caliban,Has a new master—Get a new man.

1610–1611 (date written), William Shakespeare, “The Tempest”, in Mr. William Shakespeares Comedies, Histories, & Tragedies […] (First Folio), London: […] Isaac Iaggard, and Ed[ward] Blount, published 1623, [Act II, scene ii]