Emphatic sjálfur and Intensive Pronouns

English makes one little word, -self, do two completely different jobs. In he hurt himself it is reflexive: the object is the same person as the subject. In he himself broke the window it is emphatic (or intensive): it adds stress, insisting it really was him and nobody else. English uses the same form for both and lets word order and context sort them out. Icelandic refuses to merge them. It uses the reflexive pronoun sig for the reflexive object — covered on its own page — and the word sjálfur for emphasis. This page is about sjálfur: how it declines, how it intensifies a noun or pronoun, and how it joins forces with the reflexive to produce sjálfan sig "oneself", the form you need when you want both meanings at once.

sjálfur is an adjective, not a frozen word

The first thing to unlearn is the English habit of treating "-self" as an invariant tag. sjálfur is an adjective in every grammatical respect: it has a masculine, feminine and neuter form, it inflects for all four cases, and it agrees with whatever it intensifies. The basic strong-declension forms are sjálfur (m.), sjálf (f.), sjálft (n.) in the nominative singular, and they run through the cases exactly as a strong adjective does.

Because it agrees, sjálfur tells you grammatically who is being emphasised. A man says ég gerði það sjálfur with masculine sjálfur; a woman says ég gerði það sjálf with feminine sjálf. The choice of ending is not optional decoration — it points back, like a little arrow, at the person or thing in focus.

What sjálfur actually does: it intensifies, it does not reflexivise

Here is the crucial point that English speakers miss. On its own, sjálfur adds emphasis; it does not turn a verb reflexive. Compare two English readings of "himself":

• He himself did it — emphatic. Icelandic: Hann gerði það sjálfur.
• He hurt himself — reflexive. Icelandic: Hann meiddi sig.

In the first, sjálfur simply stresses that it was he; the verb still has whatever object it had (here none). In the second, the object genuinely is the same as the subject, and that is the job of sig, the reflexive — not of sjálfur. If you reach for sjálfur expecting it to mean "himself" as an object, you will produce something Icelandic ears read as emphasis, not reflexivity, and the sentence will sound wrong or incomplete.

So the division of labour is clean: sig = reflexive object ("him/her/itself" as the object), sjálfur = intensifier ("personally, and no one else"). Keeping these in separate boxes is the single most important takeaway on this page.

Emphasising a noun: "the president himself"

sjálfur loves to sit right next to a noun or name to give it weight: kóngurinn sjálfur "the king himself", forsetinn sjálfur "the president himself", Reykjavík sjálf "Reykjavík itself". The pattern is noun (definite) + sjálfur, with sjálfur agreeing in gender, number and case. It conveys "the very one", "no less a person than", and often a note of surprise, prestige or significance.

Notice the agreement working in that last example: leikkonuna is feminine accusative, so sjálfa is feminine accusative too. Get the noun's gender and case right, and sjálfur simply copies them.

sjálfan sig — the emphatic reflexive

Now for the construction that ties the two systems together. When you want a reflexive object and emphasis at the same time — English "he loves only himself", with heavy stress — Icelandic combines both words: the reflexive sig plus the intensifier sjálfan. The result is sjálfan sig "(one's very) self".

Both parts inflect, and they must agree with each other in case. sig is the reflexive (accusative/dative form); sjálfan is the masculine accusative of sjálfur. So you get pairs like:

• accusative: sjálfan sig (m.), sjálfa sig (f.), sjálft sig (n.)
• dative: sjálfum sér (m.), sjálfri sér (f.)
• genitive: sjálfs sín

The word order normally puts sjálf- before sig/sér/sín.

Two things to note. First, this is exactly where English "-self" was doing both jobs at once, and Icelandic still keeps them visible: sig carries the reflexivity, sjálfan carries the emphasis. Second, sjálfan sig is what you want for fixed, somewhat philosophical or emotional notions — "love yourself", "be true to yourself", "blame himself" — where the self is genuinely the object and the speaker is leaning on it. A bare sig with no sjálfan would still be grammatical for the plain reflexive ("he loves him → himself"), but it would lose the emphatic colour.

How this differs from English — the whole picture

Lay the two languages side by side and the logic snaps into place:

English uses one word for all four rows. Icelandic uses sig for the first, sjálfur for the middle two, and the combination sjálfan sig for the fourth. Once you see that the table has two columns of work — reflexivity and emphasis — and that Icelandic assigns each column its own word, the system stops feeling foreign. You are not learning an extra word; you are learning that the two meanings English smushed together were always separate.

Common Mistakes

This is the classic transfer error: English "-self" makes learners reach for sjálfur as a reflexive object. But sjálfur never serves as the object — it only adds emphasis. The reflexive object is sig.

sjálfur is an adjective and agrees with its referent. A woman doing something herself is sjálf, not the masculine sjálfur. Freezing it in the masculine is like leaving an adjective uninflected.

A bare sig gives the plain reflexive, but loses the emphasis English carries in "only himself". When you want that punch, use the emphatic reflexive sjálfan sig.

Inside sjálfan sig / sjálfan þig, the intensifier must take the same case as the pronoun. After á (here governing the accusative) the pronoun is þig and the intensifier is sjálfan — both accusative.

When sjálfur emphasises a noun, it copies that noun's case. A subject noun is nominative, so the intensifier is sjálfur, not the accusative sjálfan.

Key Takeaways

• sjálfur / sjálf / sjálft is an adjective: it declines for gender, number and case and agrees with the person or thing it emphasises.
• On its own it intensifies ("personally, and no one else") — ég gerði það sjálfur "I did it myself", kóngurinn sjálfur "the king himself". It does not turn a verb reflexive.
• The plain reflexive object is sig (its own page); do not use sjálfur for "hurt himself".
• For the emphatic reflexive ("only himself", "believe in yourself"), combine the two: sjálfan sig — sig carries the reflexivity, sjálfan the emphasis, and the intensifier agrees in case (sjálfan þig, sjálfri sér, sjálfs sín).
• English "-self" does both jobs with one word; Icelandic keeps sig (reflexive) and sjálfur (emphatic) separate, and lets you stack them.