Eggcorn
In linguistics, an eggcorn is an idiosyncratic substitution of a word or phrase for a word or words that sound similar or identical in the speaker's dialect (sometimes called oronyms). The new phrase introduces a meaning that is different from the original, but plausible in the same context, such as "old-timers' disease" for "Alzheimer's disease". This is as opposed to a malapropism, where the substitution creates a nonsensical phrase. Classical malapropisms generally derive their comic effect from the fault of the user, while eggcorns are errors that exhibit creativity or logic. Eggcorns often involve replacing an unfamiliar, archaic, or obscure word with a more common or modern word ("baited breath" for "bated breath").