Definition of "tost"

A wanderer, here by fortune tost, / My way, my friends, my courser lost, / I ne'er before, believe me, fair, / Have ever drawn your mountain air, / Till on this lake's romantic strand, / I found a fay in fairy land.

1810, Walter Scott, “Canto I. The Chase.”, in The Lady of the Lake; […], Edinburgh: […] [James Ballantyne and Co.] for John Ballantyne and Co.; London: Longman, Hurst, Rees, and Orme, and William Miller, stanza XXII, page 28

Go, fetch me a quart of Sacke, put a toſt in't.

c. 1597 (date written), William Shakespeare, “The Merry Wiues of Windsor”, in Mr. William Shakespeares Comedies, Histories, & Tragedies […] (First Folio), London: […] Isaac Iaggard, and Ed[ward] Blount, published 1623, [Act III, scene v], page 52, column 1