The phrase "hast one say" is an archaic way of asking if someone has something to say. The spelling of "hast" reflects its Middle English origins, where it was commonly used as the second-person singular form of "have" in present tense. In IPA phonetic transcription, "hast" would be pronounced as /hæst/, with a short "a" sound and a voiceless "t" at the end. The spelling "one" for "any" was also common during the Middle English period.