chased / chaste are similar-sounding terms with different meanings (referred to as homophones). To better understand the differences, see below for definitions, pronunciation guides, and example sentences using each term. 👇
chased: NA
chaste: (adjective) morally pure (especially not having experienced sexual intercourse). (adjective) pure and simple in design or style. (adjective) abstaining from unlawful sexual intercourse.
chased: ch·EY·s·t
chaste: ch·EY·s·t
(Examples are Wikipedia snippets under the CC ShareAlike 3.0 license. Definitions drawn from WordNet.)