allowably

It may be allowably said, there is a tone of breeding throughout these ballads, such as is never found in the productions of rustic genius.

From The Romantic Scottish Ballads: Their Epoch and Authorship by Robert W. (Robert William) Chambers

This needs a short explanation, as the reader may allowably ask how a man without any conception of art could be even a moderately successful artist.

From Philip Gilbert Hamerton An Autobiography, 1834-1858, and a Memoir by His Wife, 1858-1894 by Philip Gilbert Hamerton

So many of this sort of words as are allowably contracted, belong to the class of redundant verbs, among which they may be seen in a subsequent table.

From The Grammar of English Grammars by Goold Brown

But surely there may allowably exist in the minds of different men different means of arriving at the same security.

From The Life of Samuel Taylor Coleridge 1838 by James Gillman

Miss Crawford was most allowably a sweet, pretty girl, while the Miss Bertrams were the finest young women in the country.

From The World's Greatest Books — Volume 01 — Fiction by Sir John Alexander Hammerton