From Late Middle English wast; equivalent to was + -est.

• IPA: /wɒst/

1. (archaic) second-person singular simple past indicative of be; wert.
   • c. 1598–1600 (date written), William Shakespeare, “As You Like It”, in Mr. William Shakespeares Comedies, Histories, & Tragedies […] (First Folio), London: […] Isaac Iaggard, and Ed[ward] Blount, published 1623, →OCLC ↗, [Act IV, scene 2 (a hunting song)]:

     Take thou no scorn to wear the horn, It was a crest ere thou wast born […]

   • 1611, The Holy Bible, […] (King James Version), London: […] Robert Barker, […], →OCLC ↗, Genesis 3:11 ↗:

     And he said, Who told thee that thou wast naked? Hast thou eaten of the tree, whereof I commanded thee that thou shouldest not eat?

   • 1611, The Holy Bible, […] (King James Version), London: […] Robert Barker, […], →OCLC ↗, Revelation 16:5 ↗:

     And I heard the angel of the waters say, Thou art righteous, O Lord, which art, and wast, and shalt be, because thou hast judged thus.

   • 1850, Dante Gabriel Rossetti, The Blessed Damozel, lines 97–99:

     Alas! We two, we two, thou say'st!
     Yea, one wast thou with me
     That once of old.

wast (plural wasts)

1. Obsolete form of waist