The phrase "hast its seat in" is commonly used to describe where something is located. The word "hast" is an archaic form of the verb "have" in the present tense second person singular. The pronunciation of "hast" is /hæst/ in IPA transcription, with a short "a" sound and an unvoiced "s" sound. The word "its" is pronounced /ɪts/ in IPA transcription, with a short "i" sound and an unvoiced "s" sound. Overall, the spelling of "hast its seat in" follows traditional English spellings from older time periods.