tiǔnn-lâng-kong丈人公

grandfather-in-law

grandfather-in-law (wife's grandfather)

English Wiktionary, “丈人公” (CC BY-SA 4.0) — https://en.wiktionary.org/wiki/%E4%B8%88%E4%BA%BA%E5%85%AC · confidence: Medium (Wiktionary, Hokkien)