English Translation
He springs from a noble family.
Which reading for 出 is correct here: で or しゅつ?
He springs from a noble family.
Which reading for 出 is correct here: で or しゅつ?
で is the only correct pronunciation in this sentence structure. You can rephrase the original sentence with:
彼は貴族出身である。or 貴族出身だ。(pron. きぞくしゅっしん)