Meanings
Origin
A genericized trademark from the Bankers Box brand name (which itself was probably proprialized from the nonproprietary collocation at a time when cardboard file boxes were still novel and not widely known outside of certain occupations such as banking and insurance).
Full word history & related roots →Cite this entry
banker's box. (n.d.). In WatkinsX Dictionary. Retrieved November 5, 2026, from https://dictionary.watkinsx.com/word/banker's%20box
“banker's box.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/banker's%20box. Accessed November 5, 2026.
WatkinsX Dictionary, s.v. “banker's box,” accessed November 5, 2026, https://dictionary.watkinsx.com/word/banker's%20box.
Source: banker's box on Wiktionary, CC BY-SA 4.0.