Ngàn Sâu

== Vietnamese == === Etymology === (This etymology is missing or incomplete. Please add to it, or discuss it at the Etymology scriptorium. Particularly: “Lit. "deep forest"?”) === Pronunciation === (Hà Nội) IPA(key): [ŋaːn˨˩ səw˧˧] (Huế) IPA(key): [ŋaːŋ˦˩ ʂəw˧˧] ~ [ŋaːŋ˦˩ səw˧˧] (Saigon) IPA(key): [ŋaːŋ˨˩ ʂəw˧˧] ~ [ŋaːŋ˨˩ səw˧˧] === Proper noun === Ngàn Sâu (sông ～) a river in North Central Vietnam, a tributary of the La River