deceptive (adj.) Look up deceptive at Dictionary.com
1610s, from French deceptif (late 14c.), from Medieval Latin deceptivus, from decept-, past participle stem of Latin decipere (see deceive). Earlier in this sense was deceptious (c.1600), from French deceptieux, from Medieval Latin deceptiosus, from deceptionem. Related: Deceptively; deceptiveness.