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nightwalker

[nahyt-waw-ker]
noun
  1. a person who walks or roves about at night, especially a thief, prostitute, etc.
  2. New England. an earthworm.
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Origin of nightwalker

First recorded in 1475–85; night + walker
Related formsnight·walk·ing, adjective, noun

Regional variation note

2. See earthworm.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018