Definify.com
Webster 1913 Edition
Somnial
Som′ni-al
,Adj.
 [L. 
somnialis 
dream bringing, fr. somnium 
dream, fr. somnus 
sleep.] Of or pertaining to sleep or dreams. 
The 
somnial 
magic superinduced on, without suspending, the active powers of the mind. Coleridge.
Definition 2025
somnial
somnial
English
Adjective
somnial (not comparable)
-  (rare) Pertaining to dreams. [from 17th c.]
-  1940, Harvey Cushing, Life of Sir William Osler, vol. 2:
- He had indeed been making a study of his dreams, to what purpose or effect is not apparent, but there remains a note-book filled with closely written observations upon them, for he seemed always to awaken with most vivid recollections of astounding, amusing, and bizarre somnial experiences.
 
-  1998, Jennifer Ford, Coleridge on Dreaming, p. 54:
- Often, it was Sara Hutchinson who was the focus of his somnial fantasy life: he once exclaimed that his dreams were "always connected in some way or another" with her (CN II 2055).
 
 
-  1940, Harvey Cushing, Life of Sir William Osler, vol. 2:
Translations
Pertaining to dreams