To taste, choose.

  1. Germanic *keusan, causative *kausjan. choice, choose.
  2. Zero-grade form *gus-. Germanic *kuz-. Old Norse Valkyrja, "chooser of the slain," Valkyrie
  3. Suffixed zero-grade form *gus-tu-. Latin gustus, taste. qust*
  4. Suffixed zero-grade form *gus-to-. Latin gustāre, to taste.