noct·​am·​bu·​list näk-ˈtam-byə-list How to pronounce noctambulist (audio)
: a person who walks while asleep : sleepwalker

Word History


New Latin noctambulus "sleepwalker" (earlier noctambulō, with -ōn-, -ō, agent suffix, from Latin noct-, nox night entry 1 + -ambul-, noun derivative of ambulāre "to walk") + -ist entry 1 — more at amble entry 1

First Known Use

circa 1731, in the meaning defined above

Time Traveler
The first known use of noctambulist was circa 1731

Dictionary Entries Near noctambulist

Cite this Entry

“Noctambulist.” Dictionary, Merriam-Webster, Accessed 1 Feb. 2023.

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