[f. prec. sb.] trans. To act the beau to, to attend or escort (a lady).
1843. [G. P. R. James], Commissioner: or De Lunatico Inq., 411. Chevalier, you shall beau the young lady.
1878. Wingfield, Lady Grizel, I. viii. 151. His Grace … is to beau your ladyship to Ranelagh.
