somnambulism

From French somnambulisme, from New Latin somnambulus, from Latin somnus (“sleep”) + ambulō (“I walk”), +‎ -ism.^[1]

• IPA^(key): /sɒmˈnæmbjʊlɪzəm/

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somnambulism (countable and uncountable, plural somnambulisms)

1. sleepwalking
   • 1862, Jules Michelet, La Sorcière: The Witch of the Middle Ages‎^[1]:

     Meanwhile, towards the twelfth century, there come to be two weaknesses attached to this state of half-grown youth: by night somnambulism; in the daytime seeing of visions, trance, and the gift of tears.

• sleepwalking (common)
• noctambulism (rare)
• somnambulance (rare)
• somnambulation (rare)

Borrowed from French somnambulisme.

• IPA^(key): /som.nam.buˈlism/

somnambulism n (uncountable)

1. somnambulism

   Synonyms: noctambulism, selianism

• somnambulic
• somnambulist