wastingly

adv

Etymology: From wasting + -ly.

1. In a way that causes wastage; wastefully.

   “As in decapitating the whale, the operator's instrument is brought close to the spot where an entrance is subsequently forced into the spermaceti magazine; he has, therefore, to be uncommonly heedful, lest a careless, untimely stroke should invade the sanctuary and wastingly let out its invaluable contents.”