en.wiktionary.org-tyú - Wiktionary, the free dictionary Contents From Wiktionary, the free dictionary IPA(key): [cuː] -tyú (noun-forming suffix) Added to a word to form a noun. szív (“to suck”) → szivattyú (“pump”) (noun-forming suffix): Variants: -tyú is added to back-vowel words -tyű is added to front-vowel words Appendix:Hungarian suffixes