Italian altered nouns: -ino, -etto, -one, -accio

Italian can change the shade of a noun by adding a suffix: «casa» becomes «casetta» (a little house, often a cosy one), «casona» (a big house) or «casaccia» (an ugly or shabby house). Grammars call this alteration (alterazione), and the results altered nouns (nomi alterati). Unlike derivation, which is covered under word formation, alteration does not create a new concept or change the word class: a «casetta» is still a «casa», seen through the speaker’s eyes. Adjectives and some adverbs can be altered too: «bello» gives «bellino», «poco» «pochino», «bene» «benino».

The traditional four types are diminutives (diminutivi), augmentatives (accrescitivi), affectionate forms (vezzeggiativi) and pejoratives (peggiorativi or dispregiativi). The labels describe tendencies, not fixed meanings. The same «panchinetta» can sound tender in one speaker’s mouth and dismissive in another’s; «un problemino» can be a small problem, a polite way of raising a big one, or an ironic understatement. Altered nouns encode attitude, and attitude depends on context and tone of voice.

Diminutives and affectionate forms

The most productive diminutive suffix is -ino: «tavolo» gives «tavolino», «ragazzo» «ragazzino», «momento» «momentino». -etto and -ello are also common: «casetta», «borsetta», «alberello», «paesello». Suffixes can combine («casettina», «pezzettino»), and some bases add a linking -ic-: «cuore» gives «cuoricino», «libro» «libricino», «vento» «venticello». The altered noun usually keeps the gender of the base, and spelling preserves the sound of the stem: «buco» gives «buchino», «amico» «amichetto», «lago» «laghetto».

Affectionate forms add tenderness: -uccio («casuccia», «tesoruccio»), or the double suffix in «orso» → «orsacchiotto» (a bear cub, and also a teddy bear). The line between diminutive and affectionate is thin: «la mia nipotina» is both small and dear.

In conversation, diminutives also soften. «Aspetta un attimino», «Le rubo un minutino», «Avrei un problemino con la fattura» all reduce the weight of a request or an interruption, much as English uses “just” or “a bit”. In shops, bars and offices this softening is part of everyday politeness; in formal writing it sounds too familiar.

• Abitano in una casetta in collina con un giardinetto pieno di fiori. · They live in a little house in the hills with a small garden full of flowers.
• Mi scusi, Le rubo solo un minutino. · Excuse me, I’ll only take a minute of your time.
• La nonna ha preparato dei biscottini per i nipotini. · Grandma has made some little biscuits for her grandchildren.

Augmentatives: size, weight and a change of gender

-one (feminine -ona) makes something big, heavy or intense: «libro» gives «librone», «naso» «nasone», «voce» «vocione». Many feminine nouns switch to the masculine with -one, often with a meaning of their own: «la porta» gives «il portone» (the main door of a building), «la febbre» «il febbrone» (a very high temperature), «la palla» «il pallone» (a ball, a football). Some feminine nouns allow both: «il donnone» or «la donnona», a big, imposing woman. The combined suffix -accione adds bulk and good-natured mockery: «omaccione», “a big burly man”.

Augmentatives are often affectionate rather than heavy. «Un bambinone» is an adult who behaves like a big child, «un tesorone» a lovely person, «un bravo ragazzone» a big, good-hearted young man. Here too the judgement depends on context: «un librone» can express admiration for a weighty book or dread of having to read it.

• Ha scritto un librone di ottocento pagine sulla storia di Venezia. · He has written a huge eight-hundred-page book on the history of Venice.
• Davanti al portone c’era un omone con la barba. · There was a big bearded man in front of the main door.
• Mio fratello ha trent’anni, ma è ancora un bambinone. · My brother is thirty, but he’s still a big kid.

Pejoratives: -accio, -astro, -iciattolo

-accio expresses disapproval: «tempo» gives «tempaccio» (awful weather), «giornata» «giornataccia» (a terrible day), «lavoro» «lavoraccio» (a nasty job), «ragazzo» «ragazzaccio» (a bad boy, often said half fondly). -astro marks inferiority or poor imitation: «poeta» gives «poetastro» (a third-rate poet), «medico» «medicastro» (a quack). With colours and tastes it means “-ish”, usually unpleasantly so: «verdastro», «dolciastro». -iciattolo belittles: «uomo» gives «omiciattolo», «mostro» «mostriciattolo».

Pejoratives range from playful to insulting. «Che tempaccio!» is a neutral complaint and «quel ragazzaccio» can be said with a smile, but calling a newspaper «quel giornalaccio» is plainly contemptuous. In political journalism, ironic alteration is a recognised weapon: a minor law is dismissed as «una leggina», a cosmetic reform as «una riformetta». When you report such a word without attributing it, you adopt its judgement.

• Che giornataccia: ho perso il treno e anche le chiavi. · What an awful day: I missed the train and lost my keys too.
• Il critico lo liquidò come un poetastro di provincia. · The critic dismissed him as a provincial poetaster.
• Il vino aveva un sapore dolciastro. · The wine had a sickly-sweet taste.

Lexicalised forms and false altered nouns

Many altered forms have become words in their own right, with a meaning you cannot predict from the base. These lexicalised forms have their own dictionary entries: «il telefonino» (a mobile phone, colloquial), «lo spazzolino» (a toothbrush), «il fazzoletto» (a handkerchief or tissue), «il rossetto» (lipstick), «il finestrino» (a car or train window), «l’ombrellone» (a beach umbrella), «il cassetto» (a drawer), «il panino» (a bread roll, a sandwich). Use them as ordinary nouns: «il finestrino» is not a small window in a house, which would be «una finestrella».

Other words only look altered. These false altered nouns (falsi alterati) end like a suffix by coincidence: «il mulino» (a mill) is not a small «mulo» (mule), «il tacchino» (a turkey) is not a small «tacco» (heel), «il burrone» (a ravine) has nothing to do with «burro», «il mattone» (a brick) is not a big «matto» (madman), and «il bottone» (a button) is not a big «botte» (barrel). When in doubt, check the dictionary before decoding the ending.

A practical rule: use common altered forms freely in conversation, where they carry warmth or irony; keep them out of formal and technical writing unless you are quoting someone, and then attribute the attitude they carry. How prefixes and suffixes build new words is covered under word formation.

• Ho dimenticato lo spazzolino in albergo. · I left my toothbrush at the hotel.
• Abbassa il finestrino, fa caldo. · Wind down the window, it’s hot.
• Il vecchio mulino del paese è stato trasformato in un museo. · The village’s old mill has been turned into a museum.