ETYMOLOGY
shortened from knick-knackatory (a repository for knick-knacks)
EXAMPLE
“… it found its way to the knackatory, where it seems to have become No. 18 in Case 1. “A handkerchief made of the asbestos rock, which fire cannot consume. …”
From: The Lure of Old Chelsea
By Reginald Blunt, 1922
Lexicophilia 