Defn: Caused by Lethe. " Letheed dullness." [Obs.] Shak.
LETHEON
Le"the*on, n. Etym: [NL., fr. Gr. (Med.)
Defn: Sulphuric ether used as an anæsthetic agent. [R.]
LETHEONIZE
Le"the*on*ize, v. t.
Defn: To subject to the influence of letheon. [R. or Obs.]
LETHIFEROUS Le*thif"er*ous, a. Etym: [L. lethifer, letifer, fr. lethum, letum, death + ferre to bear, to bring: cf. F. léthifère.]
Defn: Deadly; bringing death or destruction.
LETHY
Le"thy, a.
Defn: Lethean. [Obs.] Marston.
LET-OFF
Let"-off`, n. (Mach.)