Merriam-Webster's Collegiate® Dictionary, 11th Edition
BLUSTER
I. verb (blustered; blustering)
Etymology: Middle English blustren, probably from Middle Low German blüsteren
Date: 15th century
intransitive verb to talk or act with noisy swaggering threats,
2. to blow in stormy noisy gusts, to be windy and boisterous, transitive verb to utter with noisy self-assertiveness, to drive or force by blustering, blusterer noun blusteringly adverb
II. noun
Date: 1583
a violent boisterous blowing, violent commotion, loudly boastful or threatening speech, blusterous adjective blustery adjective