to make you feel calm or safe when it is not reasonable to feel this way His confidence lulled me into thinking things were somehow going to work out.
Usage notes: often used with the phrase a false sense of security(a feeling that everything is under control when it really is not): Don't let the computer lull you into a false sense of security – there are still lots of ways for you to make mistakes.
Deceive into trustfulness, as in The steadily rising market lulled investors into a false sense of security. The earliest recorded version of this term referred to wine: "Fitter indeed to bring and lull men asleep in the bed of security" (Philemon Holland, Pliny's Historie of the World, 1601. Today it still often appears with the phrase a false sense of security.