1695    W. Congreve   ii. i. 18  				Fore. Nurse, Where's your young Mistress? Nurse. Wee'st heart, I know not, they're none of 'em come home yet.
1703    R. Thoresby Let. 27 Apr. in  J. Ray  		(1848)	 430  				Wae'st heart, a condolence to the same purport with wae's me, woe is the heart, &c.
a1774    R. Fergusson  		(1785)	 141  				'Mang men, wae's-heart! we aften find The brawest drest want peace o' mind.
1787    F. Grose   				Wa-ist heart, woe is me. N.
1827    C. I. Johnstone  III. ii. 25  				Waes heart! waes heart!
1829    J. Hunter   				Wast-heart-a-day, an expression of grief or of commiseration.
1835    E. Strutt  II. xvii. 308  				Wae's-heart—it's a vexatious world we have to go through.
1854     1st Ser. 9 349/2  				Waestart, a common expression of sorrow or condolence among the lower classes..around Leeds.
1862    C. C. Robinson  445  				‘Wāasteheart barns! ye knawn't what's let on yuh, God help yuh!’ ‘How are yuh to-dāay then like?’ ‘Noa better, thenk yuh.’ ‘Ah, wāasteheart! wāasteheart!’
1876    F. K. Robinson   				Weeas is t'heart!, I am heartily sorry for it.
a1912    W. W. Skeat  & A. L. Mayhew  		(1914)	 445  				‘Wae's t'heart’, ‘Wae's heart of me’, are Yorks. exclamations.