Definition of "beest"

Stephano! if thou beest Stephano, touch me, and speake to me: for I am Trinculo; be not afeard, thy good friend Trinculo.

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]

If thou, to be so seene, beest loath, / By Sunne, or Moone, thou darknest both […].

a. 1631 (date written), J[ohn] Donne, “The Baite”, in Poems, […] with Elegies on the Authors Death, London: […] M[iles] F[lesher] for Iohn Marriot, […], published 1633