Negative Polarity and Licensing

Some words can only live in "negative-flavoured" surroundings. English any is the textbook case: I didn't see anyone is fine, but *I saw anyone is broken — any needs a negation, a question, or a conditional to license it. Icelandic has exactly the same phenomenon, and the same logic transfers from English almost perfectly. The catch is that you must learn which Icelandic word is the polarity-sensitive "any" and which is the freely-usable "some," and you must learn the list of licensing environments. This page covers Icelandic's negative-polarity items (NPIs) — chiefly the neinn / neitt series — the environments that license them, and the all-important contrast with positive nokkur "some." (For the inherent negatives enginn / ekkert / aldrei and the single-negation rule, see negative words; for scope and concord, scope-and-double. This page is about the polarity items, not the negatives themselves.)

What an NPI is — and what it is not

An inherent negative like enginn "no one" carries its own negation: it can stand alone (Enginn kom "Nobody came"). A negative-polarity item like neinn "any(one)" carries no negation of its own; it is parasitic — it must appear inside an environment that supplies one. Strip the licenser away and the NPI is simply ungrammatical, the way *I saw anyone is. So three categories must be kept distinct:

Licenser 1: negation

The prototypical environment is negation. Under ekki (and under the inherent negatives), neinn / neitt surface as "any(one)/anything." This is the standard single-negation pattern: one negator, plus a polarity word that depends on it.

The split form ekki ... neinn is the periphrastic equivalent of the inherent negative enginn — Ég sá engan ≈ Ég sá ekki neinn. The crucial thing for polarity is that without the ekki, the neinn has nothing to lean on and the sentence collapses.

Licenser 2: yes-no questions

A question licenses the NPI just as in English (Did you see anyone?). The interrogative environment is "non-veridical" — it doesn't assert that the event happened — and that is enough to license nokkur in its NPI use and neinn.

Note that in questions, nokkur leans toward the "any" reading — the speaker isn't presupposing a yes. This is the same dual life English any leads (statement I saw someone vs question Did you see anyone?).

Licenser 3: conditionals (the if-clause)

The protasis of a conditional — the ef "if" clause — is also non-veridical (it suspends the truth of its content), so it licenses the NPI.

Licenser 4: comparatives, before, and "until"

Polarity items also live in comparative clauses (better than anyone), after áður en "before," and — the classic Icelandic NPI — in fyrr en "until / before," which is itself a polarity item: it appears under negation to mean "not until."

fyrr en is a particularly good example of a polarity item that has no free positive use: it requires the negation to mean "not until," and you cannot drop the ekki and keep fyrr en in the same sense.

The nokkur / neinn division of labour

Here is the point competitors blur by listing the two as free variants. They are not interchangeable; they divide the polarity space:

• nokkur is the positive-leaning quantifier: it is the everyday "some/any" that can also stand in non-negative environments (questions, conditionals, comparatives) and, in plain positive statements, means "some." It is the broader, more neutral word.
• neinn / neitt are the strongly negative-polarity items: their natural home is under negation. In a flat positive assertion they are ungrammatical (this is the heart of the learner error below).

So the working rule is: for "some" in a positive statement, use nokkur (or einhver); for "any" under a negation/question/conditional, neinn / neitt (or nokkur) is licensed. The English some/any intuition is your guide — neinn patterns with any, nokkur/einhver with some.

The honest hard edge: nokkur straddles the line

A rigorous page must admit the messy part. nokkur is not a pure polarity item nor a pure positive — it straddles the boundary. In positive statements it means "some" (nokkrir gestir); in questions and conditionals it works as polarity "any"; and after negation it is often replaced by the crisper neinn. neinn, by contrast, is the clear NPI: reliably licensed only by a downward-entailing or non-veridical environment. The practical consequence is that neinn is your diagnostic — if you can substitute neinn and the sentence stays grammatical, you are in a licensing environment; if neinn is impossible, you are in a plain positive context and need nokkur/einhver meaning "some." (The subjunctive, another non-veridical environment, also favours polarity items in many embedded clauses — see the subjunctive in depth.)

Relation to negative concord — don't confuse the two

It is worth drawing a firm line between polarity licensing (this page) and negative concord (the doubling of negatives for emphasis, covered on scope-and-double). In Ég sá ekki neinn, the neinn is not a second negative — it is a polarity word carrying no negation, licensed by the single negator ekki. That is standard, single-negation Icelandic. Negative concord, by contrast, stacks two genuinely negative elements (aldrei enginn) for force and is non-standard in writing. The takeaway: ekki + neinn is correct standard grammar, not concord; only stacking two inherent negatives counts as concord.

Why this is hard (and easy) for English speakers

The good news is that the core transfers: English speakers already command the some/any distinction, and Icelandic respects it — neinn behaves like any, nokkur/einhver like some. The traps are two. First, learners reach for neinn in a positive statement, copying nothing in particular but over-generalising "any" — \ég sá neinn for "I saw someone." That is ungrammatical for the same reason *I saw anyone is: no licenser. Use *einhvern/nokkurn for positive "someone." Second, learners under-use the licensed neinn under negation and instead translate "anything" literally with the wrong word. Anchor on the English judgement — can I say "any" here? If yes, you are licensed; if you would say "some," reach for nokkur/einhver.

Common Mistakes

neinn cannot appear in a flat positive assertion — just like English *I saw anyone. For positive "someone," use einhvern (or nokkurn).

Under negation, the "any" word is neinn, not the positive einhver. (The crisper one-word equivalent is the inherent negative engan.)

neitt is the polarity "anything" and lives under negation; positive "something" is eitthvað.

In conditionals and questions the smoother polarity word is nokkur; reserve neinn for the clearly negative environments where it is at home.

fyrr en "until" requires a negation in the main clause; without ekki the polarity item has nothing to license it.

Key Takeaways

• NPIs carry no negation of their own and need a licenser: negation, a yes-no question, the ef conditional clause, comparatives, áður en, and fyrr en.
• neinn / neitt are the true NPIs (= English any); their home is under negation (ekki neinn = enginn). nokkur / einhver are the positive "some/any" (= English some) and are free in positive statements.
• The English some/any split transfers directly; what must be learned is the list of licensing environments and the nokkur/neinn division — nokkur straddles (positive "some", question/conditional "any"), neinn is the clear NPI.
• ekki + neinn is standard single negation, not negative concord — neinn is a polarity word, not a second negative. Stacking two inherent negatives is concord (see scope-and-double).
• The diagnostic: if neinn can replace the word, you are in a licensing environment; if only einhver/nokkur meaning "some" works, you are in a plain positive context.