Neuter (?), a. [L., fr. ne not + uter whether; akin to E. whether. See No, and Whether, and cf. Neither.] 1. Neither the one thing nor the other; on neither side; impartial; neutral. [Archaic]
[1913 Webster]

In all our undertakings God will be either our friend or our enemy; for Providence never stands neuter. South.
[1913 Webster]

2. (Gram.) (a) Having a form belonging more especially to words which are not appellations of males or females; expressing or designating that which is of neither sex; as, a neuter noun; a neuter termination; the neuter gender. (b) Intransitive; as, a neuter verb.
[1913 Webster]

3. (Biol.) Having no generative organs, or imperfectly developed ones; sexless. See Neuter, n., 3.
[1913 Webster]

neuter (?), v. t. To render incapable of sexual reproduction; to remove or alter the sexual organs so as to make infertile; to alter; to fix; to desex; -- in male animals, to castrate; in female animals, to spay.
[PJC]