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null

(nŭl)

adj.

1. Having no legal force; invalid: render a contract null and void.

2. Of no consequence, effect, or value; insignificant.

3. Amounting to nothing; absent or nonexistent: a null result.

4. Mathematics Of or relating to a set having no members or to zero magnitude.

tr.v. nulled, null·ing, nulls

To make null.

1. Zero; nothing.

2. An instrument reading of zero.

[French nul, from Old French, from Latin nūllus; see ne in the Appendix of Indo-European roots.]

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:

Indo-European Roots

Semitic Roots

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.

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