Sc. [Prob. ellipt. for I vow: cf. VOW v.2 2 b.] An exclamation used to emphasize a statement. (See also WOW int.)
1787. Burns, What will I do, 4. My only beast, I had nae mae, And vow but I was vogie!
1814. W. Nicholson, Poems, Annandale Robin, iii. Hech me! but its lang since I saw you, And vow! yere grown gaudy and grand.
a. 1870. D. Thomson, Musings (1881), 117. When I saw that ye were weel, Vow, man, but I was gled.