Jensen 1892:62 suggested that the name of Queen Vashti, the spouse of Ahasuerus in Est. 1.9 (cf. Est. 1.11, Est. 12, Est. 15, Est. 16, Est. 17, Est. 19; Est. 2.1, Est. 4, Est. 17), is related to the presumed Elamite goddess *Wašti (or Mašti). Since there are more plausible explanations to the name Vashti, there is no need to make a link with a goddess whose name was in fact pronounced as Mašti.
Mašti is an Elamite mother goddess, attested in Middle and New Elamite royal inscriptions…