Meaning of dad-in-law in English:

dad-in-law

Pronunciation /ˈdadɪnlɔː/

noun

informal
  • The father of one's spouse; = "father-in-law".

Origin

Late 17th century; earliest use found in Peter Motteux (1663–1718), journalist and translator. From dad + -in-law, after father-in-law.