When drawing your dictionary 見送り (みおくり; miokuri) has various meanings, however, the one referring in this article is solely about sending someone off, farewell somebody.
お(御; O), as seen in the title, is a honorific prefix, adding loftiness and beauty (as part of 美化語・雅語; びかご・がご) to the expression, like ‘honorable farewell’.
MyLittle Dejima 