Bromide \BROH-mayd\ , noun;
1. A platitude or trite saying
2. A person who is platitudinous and boring
Bromide is first attested in 1836 from bromine, which comes from French brome, which derives from Greek bromos ("stench"). Bromine compounds were used as sedatives in the 19th and early 20th centuries, so if your personality has the same effect on people, you're bromide.