Ready however to relinquish his reputation when required so to do, he will not throw it away; and so far as he Allowably may, he will cautiously avoid occasions of diminishing it, instead of studiously seeking, or needlessly multiplying them, as seems sometimes to have been the practice of worthy but imprudent men.
"A Practical View of the Prevailing Religious System of Professed Christians, in the Middle and Higher Classes in this Country, Contrasted with Real Christianity."
William Wilberforce
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.
"The Grammar of English Grammars"
Goold Brown
Here, in fact, no comparison is expressed; and therefore it is questionable, whether the word "more" is Allowably used.
"The Grammar of English Grammars"
Goold Brown