Definition of "weet"
weet
verb
third-person singular simple present weets, present participle weeting, simple past and past participle weeted
(intransitive, archaic) To know.
Quotations
But Glauce, ſeeing all that chaunced there, / VVell vveeting hovv their errour to aſſoyle, / Full glad of ſo good end, to them drevv nere, / And her ſalevved vvith ſeemly belaccoyle, / Ioyous to ſee her ſafe after long toyle.
1596, Edmund Spenser, “Book IV, Canto VI”, in The Faerie Queene. […], part II (books IV–VI), London: […] [Richard Field] for William Ponsonby, stanza 25, page 87
The nobleness of life / Is to do thus, when such a mutual pair / And such a twain can do ’t, in which I bind, / On pain of punishment, the world to weet / We stand up peerless.
c. 1606–1607, William Shakespeare, “The Tragedie of Anthonie and Cleopatra”, in Mr. William Shakespeares Comedies, Histories, & Tragedies […] (First Folio), London: […] Isaac Iaggard, and Ed[ward] Blount, published 1623, [Act I, scene iii], lines 37–41
I wept for myself, but resigned my soul to the tyranny of Time and Circumstance, well weeting that Fortune is fair and constant to no man.
1885–1888, Richard F[rancis] Burton, transl. and editor, “Night 13”, in A Plain and Literal Translation of the Arabian Nights’ Entertainments, now Entituled The Book of the Thousand Nights and a Night […], Shammar edition, volume (please specify the volume), [London]: […] Burton Club […]