verb (past pleaded or pled /pled/)
Middle English (in the sense 'to wrangle'): from Old French plaidier 'resort to legal action', from plaid 'discussion' (see plea)
In a court of law, a person can plead guilty or plead not guilty. The phrase plead innocent, although commonly found in general use, is not a technical legal term. Note that one pleads guilty to (not of) an offense, and may be found guilty of an offense. See also innocent (usage).