Haberdash

Part of speech: noun

Definitions

1. To behave or speak without care or thoughtfulness, often with hasty or careless results
2. To act or talk recklessly and foolishly, disregarding consequences or proper consideration
3. To move or proceed in a haphazard way, or to speak carelessly without proper thought

Etymology: Haberdash is a shortened form of haberdasher, the longer word it was cut down from by dropping the ending "-er." Its history therefore runs through haberdasher, which is the word to read for the full story of how the trade and its name developed.