tetra-

== Translingual == === Etymology === Borrowed from Ancient Greek τετρα- (tetra-). === Prefix === tetra- four ==== Derived terms ==== ==== Translations ==== == English == === Alternative forms === tetr- (before a vowel) === Etymology === Borrowed from Ancient Greek τετρα- (tetra-), combining form of Ancient Greek τέτταρες (téttares), from τέσσαρες (téssares, “four”). Doublet of quadri-. === Pronunciation === IPA(key): /ˈtɛtɹə/ === Prefix === tetra- Four. Synonyms: tessara-; quadri- (Latin-derived counterpart) 2006, Thomas Pynchon, Against the Day, Vintage 2007, p. 665: [cf. -latry] Which is how Kit first heard about the T.W.I.T. back in London, and of the ghostly neo-Pythagorean cult of tetralatry or worship of the number four, currently the rage in certain European circles ==== Derived terms ==== ==== Translations ==== === See also === Thesaurus:number === Anagrams === Ratte, Treat, atter, ratte, tater, teart, treat == Catalan == === Etymology === From Ancient Greek τέτταρες (téttares), τέσσαρες (téssares, “four”). === Prefix === tetra- tetra- ==== Derived terms ==== === Further reading === “tetra-”, in Diccionari de la llengua catalana [Dictionary of the Catalan Language] (in Catalan), second edition, Institute of Catalan Studies [Catalan: Institut d'Estudis Catalans], April 2007 “tetra-”, in Gran Diccionari de la Llengua Catalana, Grup Enciclopèdia Catalana, 2026 “tetra-” in Diccionari normatiu valencià, Acadèmia Valenciana de la Llengua. “tetra-” in Diccionari català-valencià-balear, Antoni Maria Alcover and Francesc de Borja Moll, 1962. == Finnish == === Etymology === Internationalism (see English tetra-), ultimately from Ancient Greek τετρα- (tetra-). === Pronunciation === IPA(key): /ˈtetrɑ-/, [ˈt̪e̞t̪rɑ̝-] === Prefix === tetra- (in loanwords or chemistry) tetra- ==== Usage notes ==== The prefix tetra- is mainly used in the names of chemical compounds or in words that have been loaned from other languages with the tri- prefix already there. For other words, the prefix neli-, which is derived from the Finnish word neljä (“four”) is preferred. ==== Derived terms ==== == Italian == === Alternative forms === tetr- (before a vowel) === Etymology === From Ancient Greek τέτταρες (téttares), τέσσαρες (téssares, “four”). === Prefix === tetra- tetra- Synonym: quadri- ==== Derived terms ==== ==== Related terms ==== tetracordo tetrade tetrapode tetrarca tetrastico === Anagrams === retta == Polish == === Etymology === From Ancient Greek τετρα- (tetra-). === Pronunciation === IPA(key): /tɛ.tra/ Rhymes: -ɛtra Syllabification: te‧tra- === Prefix === tetra- tetra- ‎tetra- + ‎-logia → ‎tetralogia ==== Derived terms ==== === Further reading === tetra- in Polish dictionaries at PWN == Portuguese == === Etymology === From Ancient Greek τέτταρες (téttares), τέσσαρες (téssares, “four”). === Prefix === tetra- tetra- ==== Derived terms ==== === Further reading === “tetra-”, in Dicionário Aulete Digital (in Portuguese), Rio de Janeiro: Lexikon Editora Digital, 2008–2026 “tetra-”, in Dicionário Priberam da Língua Portuguesa (in Portuguese), Lisbon: Priberam, 2008–2026 == Spanish == === Etymology === Borrowed from Ancient Greek τετρα- (tetra-). === Prefix === tetra- tetra- ==== Derived terms ==== === Further reading === “tetra-”, in Diccionario de la lengua española [Dictionary of the Spanish Language] (in Spanish), online version 23.8.1, Royal Spanish Academy [Spanish: Real Academia Española], 15 December 2025