Wastingly

Origin

wasting + -ly

Full definition of wastingly

Adverb

1. In a way that causes wastage; wastefully.
• 1851, Herman Melville, Moby Dick, Scribner (1902), page 295: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.