neither

Etymology

Alteration (after either) of nauther, from Middle English nawther, noþer, naðer (whence also Modern nor), from Old English nāwþer, contraction of nāhwæþer, corresponding to no + whether. Compare Latin neuter (“neither”).

det

1. Not one of two; not either.
   Neither definition seems correct.
   She was neither learned nor intelligent, but she contrived to dress both herself and her daughter out of a meagre jointure, supplying with her clever fingers what her purse could not buy;[…]. 1959, Georgette Heyer, chapter 1, in The Unknown Ajax
2. Not either (used with nor).
   Neither you nor I like it.

pron

1. Not either one of two.
   I’ve tried on both shirts, but neither fits properly.

adv

1. Similarly not.
   Just as you would not correct it, neither would I.
   Neither can she stop him, nor can he stop her.
   Neither now, nor ever will he forsake his mother.
   The ability to shift profits to low-tax countries by locating intellectual property in them[…]is often assumed to be the preserve of high-tech companies. […] current tax rules make it easy for all sorts of firms to generate […] “stateless income”: profit subject to tax in a jurisdiction that is neither the location of the factors of production that generate the income nor where the parent firm is domiciled. 2013-06-22, “T time”, in The Economist, volume 407, number 8841, page 68