early 15c., Anglo-French, "goods sold by a haberdasher," from haberdasher + -y (2). Meaning "a haberdasher's shop" is recorded from 1813, with perceived meaning shading to -ery.
Entries linking to haberdashery
haberdasher n.
early 14c. (late 13c. as a surname), "seller of small articles of trade" (caps, purses, beads, thread, stationery, etc.), from Anglo-French, where apparently it was an agent noun formation from hapertas "small wares," also a kind of fabric, a word of unknown origin. Sense of "dealer in men's wares" is 1887 in American English, via intermediate sense of "seller of caps." Middle English haberdash (n.) "small articles of trade sold by a haberdasher" appears to be a back-formation from this word, and the verb haberdash is late (1630s) and rare.
-y 2
adjective suffix, "full of or characterized by," from Old English -ig, from Proto-Germanic *-iga- (source also of Dutch, Danish, German -ig, Gothic -egs), from PIE -(i)ko-, adjectival suffix, cognate with elements in Greek -ikos, Latin -icus (see -ic). Originally added to nouns in Old English; used from 13c. with verbs, and by 15c. even with other adjectives (for example crispy). Adjectives such as hugy, vasty are artificial words that exist for the sake of poetical metrics.
-ery
word-forming element making nouns meaning "place for, art of, condition of, quantity of," from Middle English -erie, from Latin -arius (see -ary). Also sometimes in modern colloquial use "the collectivity of" or "an example of."