-one

Forms

-one m (noun-forming suffix, plural -oni, feminine -ona)^[1]

Etymology

It is inherited from Latin -ōnem (“suffix of nouns for persons”), from the accusative of a Latin suffix of nouns.^[2][3][4][1] In Latin it marked a person by a typical quality or habit, often a bad one, and Zingarelli and Sabatini–Coletti describe it as an individualising suffix.^[5][6] The Latin suffix goes back to Proto-Indo-European *-ō, *-on-, perhaps merged with the suffix *-h₃ō; this last point is disputed.^[1]

The same suffix is Spanish -ón, Portuguese -ão, French -on and Romanian -oi.^[1] The English spelling -oon, used from the 15th to the 17th century for stressed French -on, also rendered Italian -one and Spanish -ón.^[7]

Semantic evolution

In Italian the suffix forms augmentatives of nouns and of adjectives used as nouns (nasone “big nose”, furbone “sly one”).^[2][8][9] The feminine is -ona, but feminine nouns often take a masculine augmentative: porta gives portone, donna gives donnone.^[9][8] In some words the sense of size has faded, as in portone, minestrone, ombrellone and trombone, and a few nouns in -one name tools (soffione, frullone).^[10]

The older Latin use survives in nouns for people, mostly formed from verbs, which name a habit or an excess: mangione “big eater”, dormiglione “sleepyhead”, brontolone “grumbler”, imbroglione “cheat”.^[2][5][10] From nouns and adjectives it names a person by a feature seen as negative: capellone “long-haired youth”, straccione “ragamuffin”.^[10][5] It is occasionally added to adverbs (benone “very well”), and some words alternate with forms in -oni (ginocchione and ginocchioni “on one's knees”).^[10] In speech the suffix may be repeated on its own to stress what a word ending in it has said.^[8][9]

Meanings

Suffix

1. Forms augmentatives of nouns and adjectives, often with an affectionate, ironic or scornful tone: librone “big book”, testone “big head”.^[6][5][3]
2. Forms nouns for a person who does something habitually or to excess, chiefly from verbs: mangione, chiacchierone, spendaccione.^[6][5][10]
3. Forms nouns for a person marked by a quality, from adjectives or nouns: cordialone, pancione, terrone.^[6][5][10]

Related words

• -ona
• Latin -o
• Spanish -ón
• French -on
• English -oon

Usage notes

In organic chemistry -one is a separate suffix marking a ketone or carbonyl group, as in acetone and chetone.^[5][11][10] Nocentini takes it from French acétone, Zingarelli and De Mauro from the Greek feminine patronymic ending -ṓnē, and Sabatini–Coletti and Gabrielli from the end of chetone.^{[2][5][10][6][4]} In physics -one names elementary particles (elettrone, protone, fotone); Nocentini derives it from protone, De Mauro from anione, Zingarelli from the Greek neuter ending -on.^[2][10][5] In biology it names functional units (neurone, nefrone, osteone), on the model of neurone.^[9][10]

References

1. ^ a b c d e Wiktionary, the free dictionary, https://en.wiktionary.org
2. ^ a b c d e Nocentini, Alberto; Parenti, Alessandro (2010), l'Etimologico: vocabolario della lingua italiana, Firenze: Le Monnier
3. ^ a b De Mauro, Tullio (ed.) (2003), Grande dizionario italiano dell'uso, CD-ROM version 2.0, Torino: UTET
4. ^ a b Gabrielli, Aldo (2020), Grande dizionario italiano, digital ed., Milano: Hoepli
5. ^ a b c d e f g h i Zingarelli, Nicola (2009), Lo Zingarelli 2010: vocabolario della lingua italiana, Bologna: Zanichelli
6. ^ a b c d e Sabatini, Francesco; Coletti, Vittorio; Manfredini, Manuela (2026), Dizionario italiano Sabatini Coletti, digital ed., Milano: Sansoni / Rizzoli Larousse
7. ^ Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
8. ^ a b c Devoto, Giacomo; Oli, Gian Carlo; Serianni, Luca; Trifone, Maurizio (2026), Nuovo Devoto–Oli: il vocabolario dell'italiano contemporaneo, digital ed., Milano: Le Monnier
9. ^ 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)
10. ^ a b c d e f g h i j De Mauro, Tullio, Il Nuovo De Mauro, online ed., dizionario.internazionale.it
11. ^ Vocabolario della lingua italiana Treccani (2011), Roma: Istituto della Enciclopedia Italiana