Noun
The husband of one's daughter; a man in his relationship to his wife's parents.
Source: Webster's dictionaryWhoever got a good son-in-law gained a son, and whoever got a bad son-in-law also lost his daughter. Democritus
The man who is fortunate in his choice of son-in-law gains a son; the man unfortunate in his choice loses his daughter also. Democritus
My grandmother was a teacher, my sister was a teacher, my daughter was a teacher and is now a superintendent in northern California, and my son-in-law is a high school principal. I am surrounded. Loni Anderson
A son-in-law and a pig will show you the way only once. Spanish Proverb
Never praise your son-in-law until the year is out. Irish Proverb
I see by my daughter's face when the devil lays hold of my son-in-law. Portuguese Proverb