er·uv (ârv, ĕr-)
n. pl. er·u·vin (--vĭn′) or er·u·vim (--vĭm′) or er·uvs
A symbolic enclosure, marked by preexisting walls or by cord or wire strung on posts, nominally converting public space into private space and so permitting activities that would otherwise be prohibited on the Sabbath.
[Post-Biblical Hebrew 'êrûb, verbal noun of 'ērēb, to mix, mingle (from the fact that under Halachic law the separate households in the eruv are considered to be a single household, or mingled ), from Hebrew 'ēreb, mixture; see ʿrb in the Appendix of Semitic roots.]
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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.