Definition of "methystic" [methystic]

• That intoxicates; intoxicating.
• Noting an acid, a colorless compound, , prepared by the hydrolysis of its methyl ester, methysticin (kawain), derived from kawa-root (Piper methysticum). It crystallizes in silky, lustrous, prismatic needles and melts at 180° C. (noun)

The Century Dictionary (Public Domain)