somnial

adjective
som·​ni·​al | \ ˈsämnēəl\

Definition of somnial

: of or relating to sleep or dreams vivid recollections of … bizarre somnial experiences— H. W. Cushing

History and Etymology for somnial

French, from Late Latin somnialis, from Latin somnium dream + -alis -al; akin to Latin somnus sleep

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