intr.v. lurked, lurk·ing, lurks
1. To wait out of view: thieves lurking in the shadows.
2. To move furtively; sneak: heard him lurking along the corridor.
3. To exist unobserved or unsuspected: danger lurking around every bend.
4. To read but not contribute to the discussion in a newsgroup, chatroom, or other online forum.
[Middle English lurken, possibly of Scandinavian origin.]
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2020 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Indo-European & Semitic Roots Appendices
Thousands of entries in the dictionary include etymologies that trace their origins back to reconstructed proto-languages. You can obtain more information about these forms in our online appendices:
The Indo-European appendix covers nearly half of the Indo-European roots that have left their mark on English words. A more complete treatment of Indo-European roots and the English words derived from them is available in our Dictionary of Indo-European Roots.