Definition of "hoo"

'Aye, aye,' said the father, impatiently, 'hoo'll come. Hoo's a bit set up now, because hoo thinks I might ha' spoken more civilly; but hoo'll think better on it, and come. I can read her proud bonny face like a book.

1854, Elizabeth Cleghorn Gaskell, North and South, Chapter VIII

Our enemy is banish'd! he is gone! Hoo! hoo!

c. 1608–1609 (date written), William Shakespeare, “The Tragedy of Coriolanus”, in Mr. William Shakespeares Comedies, Histories, & Tragedies […] (First Folio), London: […] Isaac Iaggard, and Ed[ward] Blount, published 1623, (please specify the act number in uppercase Roman numerals, and the scene number in lowercase Roman numerals)

With, hoo! such bugs and goblins in my life

c. 1599–1602 (date written), William Shakespeare, “The Tragedie of Hamlet, Prince of Denmarke”, in Mr. William Shakespeares Comedies, Histories, & Tragedies […] (First Folio), London: […] Isaac Iaggard, and Ed[ward] Blount, published 1623, (please specify the act number in uppercase Roman numerals, and the scene number in lowercase Roman numerals)