keh-pak--ê隔腹的

of the same paternal grandfather

of the same paternal grandfather; of the paternal bloodline

English Wiktionary, “隔腹的” (CC BY-SA 4.0) — https://en.wiktionary.org/wiki/%E9%9A%94%E8%85%B9%E7%9A%84 · confidence: Medium (Wiktionary PH)