What does amiss mean?
The definition of amiss
A*miss”, adv.
Etym: [Pref. a- + miss.]

Astray; faultily; improperly; wrongly; ill. What error drives our eyes and ears amiss Shak. Ye ask and receive not, because ye ask amiss. James iv. 3. To take (an act, thing) amiss, to impute a wrong motive to (an act or thing); to take offense at’ to take unkindly; as, you must not take these questions amiss.

A*miss”, a.
Wrong; faulty; out of order; improper; as, it may not be amiss to ask advice.

Note: [Used only in the predicate.] Dryden. His wisdom and virtue can not always rectify that which is amiss in himself or his circumstances. Wollaston.

A*miss”, n.
A fault, wrong, or mistake. [Obs.] Each toy seems prologue to some great amiss. Shak.