If the shoe doesn’t fit (2): eggcorns and etymology

“Shoe-in”, Ben Zimmer points out, belongs to a special family of errors called “eggcorns”: misspellings, mis-hearings or misinterpretations of standard (often idiomatic) words or sayings. Their name itself derives from a misspelling of “acorn”. As Ben explains in Shifting Idioms: An Eggcornucopia, eggcorns might eventually reach folk-etymological permanence, or they might continue to be considered nonstandard …