Mothing
The Century Dictionary and Cyclopedia
noun.
The catching of moths.
Wiktionary, Creative Commons Attribution/Share-Alike License
verb.
Present participle of
moth
.
Word Usage
"It is a joy to watch and for the first time I understood the confusion in the minds of young Germans whose parents and grandparents knew of Auschwitz etc. but stood by and did mothing."
suggests
nothing