commercial (adj.) Look up commercial at Dictionary.com
1680s, "pertaining to trade," from commerce + -al (1). Meaning "paid for by advertisements" (in reference to radio, TV, etc.) is from 1932; meaning "done for the sake of financial profit" (of art, etc.) is from 1871. Related: Commercially.
commercial (n.) Look up commercial at Dictionary.com
"an advertisement broadcast on radio or TV," 1935, from commercial (adj.).