Merriam-Webster's Collegiate® Dictionary, 11th Edition
BLUNT
I. adjective
Etymology: Middle English
Date: 13th century
1. slow or deficient in feeling ; insensitive , obtuse in understanding or discernment ; dull , having an edge or point that is not sharp ,
3. abrupt in speech or manner, being straight to the point ; direct , see: dull bluntly adverb bluntness noun
II. verb
Date: 14th century
transitive verb to make less sharp, definite, or forceful, intransitive verb to become blunt,
III. noun
Etymology: blunt a short, thick cigar, from 1blunt
Date: 1990
a cigar that has been hollowed out and filled with marijuana