The phrase "hast high opinion" is spelled using the Old English version of the word "have." The "hast" spelling represents the second person singular present tense form of "have" in the indicative mood. The "high opinion" part of the phrase is spelled phonetically as /haɪ əˈpɪn.jən/, with the stressed syllable being "high." Taken together, the phrase expresses the idea of someone having a high regard or esteem for something or someone.