quattro

== Italian == === Etymology === From Latin quattuor, from Proto-Italic *kʷettwōr, from Proto-Indo-European *kʷetwóres. === Pronunciation === IPA(key): /ˈkwat.tro/ Rhymes: -attro Hyphenation: quàt‧tro === Numeral === quattro (invariable) four ==== Derived terms ==== === Noun === quattro m (invariable) four === See also === quadri- quadrivio tetra- === Further reading === quattro in Collins Italian-English Dictionary quattro in Treccani.it – Vocabolario Treccani on line, Istituto dell'Enciclopedia Italiana