father-in-law

Meanings

1. 1
   noun

   A stepfather.

   `Yes,` replied Snawley. `The fact is, I am not their father, Mr Squeers. I'm only their father-in-law.`

2. 2
   noun

   the father of your spouse

3. 3
   noun

   One's spouse's father.

Etymology

From Middle English fader in lawe, fadyr-in-lay, fader yn lawe, equivalent to father + -in-law.