s-

Etymology

It is inherited from Latin ex- (“out of, away from”) and, in some words, inherited from Latin dis- (“apart”): the two Latin prefixes fell together in Italian.^[2][1][3] DELI, Sabatini–Coletti and Treccani derive it from the first alone;^[4][5][6][3] Devoto–Oli has two prefixes of this form, one from each (extractive and intensive, as in sballare, sbatacchiare) and subtractive, privative and negative, as in sbagliare, sbadato, sbilanciare).^[4][5][6][3] It is the popular form beside the learned e- and es-.^[5][6]

At first the prefix reproduced the Latin one with its two ideas of leaving a place or a state and of lacking something; it then developed on its own, with a mainly negative and sometimes intensive value.^[4] Only a few Italian words with it go back to Latin compounds (inherited ones such as scaldare, schiudere, scorrere, spiegare, sporgere); most were formed in Italian.^[6]

The Latin preposition and prefix for “out” goes back to Proto-Indo-European *h₁eǵʰs (“out”).^[7] The Latin prefix for “apart” is Proto-Italic *dis-, related to Ancient Greek διά (diá, “through, apart”) and to the numeral for “two”, but the details are disputed.^[7][1]

Semantic evolution

Italian writers noticed early how varied the prefix had become.^[4] Borghini wrote that s- could deprive, could strengthen, and had a third use unlike anything in Latin, as in smorto “pale, as if dead”, illustrated by Dante's il viso ne smuore “the face grows pale at it”.^[4] Biscioni, quoted by Tommaseo, added that the letter, though it often reverses the meaning, sometimes leaves it unchanged or gives it more force.^[4]

The prefix is still very productive.^[5] New verbs are also made by swapping one prefix for it, as in alloggiare and sloggiare or apparecchiare and sparecchiare.^[8]

Meanings

Prefix

1. Gives verbs, nouns and adjectives the opposite meaning: sfiorire, slegare, sfiducia, sleale.^[4][9][8][1]
2. Has a privative and pejorative value in adjectives and verbs formed from nouns: sgrammaticato, scostumato, sragionare.^[4][9][8]
3. Marks separation, going away or out, mostly in verbs formed from nouns or other verbs: sconfinare, sfornare, sfuggire.^[4][9][5]
4. Marks removal in verbs formed from nouns: sbucciare, spolverare, sbarbare.^[4][9][2]
5. Only forms a verb from a noun, adjective or verb: sbiancarsi, sdoppiare, slargarsi.^[4][9][1]
6. (intensive) Strengthens a verb or adjective: sbattere, strascinare, sbilenco.^[4][2][1]

Related words

• dis-
• e-
• es-
• Latin ex-

Usage notes

The prefix is pronounced /s/ before a voiceless consonant and /z/ before a voiced one (sbagliare, sdentato).^[5][1] It is not used before a vowel, where it can take the form sci- instead.^[5][3]

References

1. ^ a b c d e f g Wiktionary, the free dictionary, https://en.wiktionary.org
2. ^ a b c Nocentini, Alberto; Parenti, Alessandro (2010), l'Etimologico: vocabolario della lingua italiana, Firenze: Le Monnier
3. ^ a b c d Devoto, Giacomo; Oli, Gian Carlo; Serianni, Luca; Trifone, Maurizio (2026), Nuovo Devoto–Oli: il vocabolario dell'italiano contemporaneo, digital ed., Milano: Le Monnier
4. ^ a b c d e f g h i j k l Cortelazzo, Manlio; Zolli, Paolo (1999), Dizionario etimologico della lingua italiana, 2nd ed. by Manlio Cortelazzo and Michele A. Cortelazzo, Bologna: Zanichelli
5. ^ a b c d e f g Sabatini, Francesco; Coletti, Vittorio; Manfredini, Manuela (2026), Dizionario italiano Sabatini Coletti, digital ed., Milano: Sansoni / Rizzoli Larousse
6. ^ a b c d Duro, Aldo (ed.) (1986–1994), Vocabolario della lingua italiana, Roma: Istituto della Enciclopedia Italiana; online ed. treccani.it/vocabolario (2008 copy)
7. ^ a b de Vaan, Michiel (2008), Etymological Dictionary of Latin and the other Italic Languages, Leiden Indo-European Etymological Dictionary Series 7, Leiden; Boston: Brill
8. ^ a b c Vocabolario della lingua italiana Treccani (2011), Roma: Istituto della Enciclopedia Italiana
9. ^ a b c d e Zingarelli, Nicola (2009), Lo Zingarelli 2010: vocabolario della lingua italiana, Bologna: Zanichelli