père du gendre betyder på engelska

co-father-in-law▼(father of one's son- or daughter-in-law)
noun
[UK: kəʊ ˈfɑːð.ə(r) ɪn lɔː] [US: ˈkoʊ ˈfɑːð.r̩ ɪn ˈlɑː]

co-parent-in-law▼(the parent of one's son- or daughter-in-law)
noun