SUCCUMB
  1. survive has its dichotomy, succumb. When one is below 2.0 on the tone scale, all survival looks evil to him. Live=evil in the succumbing case. (COHA, p. 147)
  2. the point marked by what one might call the death of the consciousness of the individual. (SA, p. 22)
  3. The failure to survive is to succumb. (SOS, Bk. 2, p. 31)
  4. succumbing is the ultimate penalty of non-survival activity. This is pain. Failures bring pain and death. (SOS Gloss)