Definition of "moity"

Nor night, nor day, no rest: It is but weaknesseTo beare the matter thus: meere weaknesse, ifThe cause were not in being: part o'th cause,She, th' Adultresse: for the harlot-KingIs quite beyond mine Arme, out of the blankeAnd leuell of my braine: plot-proofe: but shee,I can hooke to me: say that she were gone,Giuen to the fire, a moity of my restMight come to me againe. Whose there?

c. 1610–1611 (date written), William Shakespeare, “The Winters Tale”, in Mr. William Shakespeares Comedies, Histories, & Tragedies […] (First Folio), London: […] Isaac Iaggard, and Ed[ward] Blount, published 1623, [Act II, scene iii]