Vietnamese Etymology sa + sút. Pronunciation (Hà Nội) IPA(key): [saː˧˧ sut̚˧˦] (Huế) IPA(key): [ʂaː˧˧ ʂʊk̚˦˧˥] ~ [saː˧˧ sʊk̚˦˧˥] (Saigon) IPA(key): [ʂaː˧˧ ʂʊk͡p̚˦˥] ~ [saː˧˧ sʊk͡p̚˦˥] Verb sa sút to fall into decay; to be on the declineWikiwand - on Seamless Wikipedia browsing. On steroids.