Save Gender Masculine Usage Vietnamese (Rare) Pronounced Pron. /zʊwk͡p̚˧˨ʔ/, /ʐʊwk͡p̚˨˩ʔ/, /ɹʊwk͡p̚˨˩˨/ [key·simplify] Meaning & History Likely from the name of the Rục people, a subgroup of the Chứt peoples. It may also be from Sino-Vietnamese 濁 (trộc) meaning "muddy, turbid, chaotic".