subs. (common).A difficult undertaking; something exaggerated; extensive, or big.
1890. Pall Mall Gazette, 17 Feb., p. 7, col. 1. A LARGE ORDER [Title].
1891. Tit-Bits, 8 Aug., 274, 1. In asking me to tell you about my clients and their wills, you give a pretty LARGE ORDER.
1892. Illustrated Bits, Oct. 22, 10, 1. Well, sir, thats a LARGISH ORDER.