the.com/trade secret

means A trade secret is confidential business information — a formula, method, or process — that gives its owner a competitive edge precisely because competitors don't know it, and which is legally protected only so long as it stays hidden.

from 'Trade' here means commerce or occupation (from Middle Low German 'trade,' a track or path — the sense of a habitual course of business), while 'secret' comes from Latin 'secretum,' something set apart or hidden, from 'secernere,' to separate. The legal category coalesced in the 1800s, as courts began enforcing confidentiality around business formulas and methods — most famously guarded by companies like Coca-Cola, whose recipe survives specifically by never being written into a patent, which would require disclosing it to the world in exchange for protection.