proofed (Adjective) — Treated so as to become resistant. ex. "rust-proofed automobiles" ex. "shrink-proofed fabrics"
proofed (Verb) — Make or take a proof of, such as a photographic negative, an etching, or typeset.
proofed (Verb) — Knead to reach proper lightness. ex. "proof dough"
proofed (Verb) — Read for errors. ex. "I should proof my manuscripts"
proofed (Verb) — Activate by mixing with water and sometimes sugar or milk. ex. "proof yeast"
proofed (Verb) — Make resistant (to harm). ex. "proof the materials against shrinking in the dryer"