Gentlemanlikely

But lo! at twelve o’clock, or thereabouts, after Windham had spoken against the pension, tho’ very gentlemanlikely, and nobody (as I thought) had spoken well for it—what should I do but get up and make such a speech as quite surprized my own self, and seemed to carry the whole House with it?

Source: wiktionary

And thus we hope and trust to find, no thank indeed, but excuse or silent, perhaps even gentlemanlikely smiling indifference or contempt, much more tolerable and desirable, however, than the unjudicious chitchat of dullness and ignorance alas too obvious in this sphere.

Source: wiktionary

I would like to discharge myself of it gentlemanlikely

Source: wiktionary

It does not prevent the exhibition at the St. James’s Theatre of sensational sexuality, brutality, drunkenness, and murder; but it takes care that all these things shall end happily, charmingly, respectably, prettily, lady-and-gentlemanlikely for all parties concerned.

Source: wiktionary