haberdasher:
(plural: ‘haberdashers‘; pronunciation: ‘haber…dasher’ — for the right pronunciation, please click here)

a haberdasher serving several customers at a time
a shopkeeper who sells pins, sewing threads and other small things used in dress making;

haberdashers selling hats and other men’s clothing
(in American usage) a shop keeper who sells men’s clothing, especially hats, gloves, etc.
After retiring from the Army, Nelson bought an old haberdashery, remodelled it, and soon became the best haberdasher in the entire town.
The haberdasher in the States is a dealer or seller of men’s clothes, including accessories such as belts, hats, cuff-likns, etc., and the haberdasher in Europe is a dealer or seller of the items needed for sewing, such as buttons, sewing thread, hats, ties, and other small things that are needed by a tailor or a seamstress.
In the past the haberdashers took care of the needs of stage actors or actresses; the same as the present day ‘costume designer’.
