The Collaborative International Dictionary
Allowably
Allowably \Al*low"a*bly\, adv. In an allowable manner.
Wiktionary
allowably
adv. In an allowable manner.
WordNet
allowably
adv. in a permissible manner [syn: permissibly] [ant: impermissibly]
Usage examples of "allowably".
In that case, indeed, you may allowably leave off, and not [run the hazard] of being whipped.