Your brother-in-law is your spouse's brother. His grandson s your spouce's great nephew. (Some people say grand nephew). That makes him your great nephew, too.
Your brother-in-law could also be the husband of your sister. Then your brother-in-law's grandson is your sister's grandson and your great nephew.
Your grandson is your brother-in-law's great nephew, and your brother-in-law is your grandson's great uncle.
That is the correct term or backbone.
The politically correct term for aging is to call the person a senior or older adult. The term elderly has fallen out of favor due to the associated negativity.
"could you call me in a minute" is the more acceptable term.
Pakis is a bit derogatory. The correct term is Pakistanis.
The correct term to call a girl who likes another girl is lesbian. Dont call girls gay it is an in accurate term. So call gay girls lesbian girls.
Your niece's son is your great-nephew. Your niece's grandson is your great-great nephew.
the correct term is hippies or weirdo,s or environmentalists
Apparantley it is the politically correct term for an aboriginal person.
A hatchling or dragonling is the correct term, but i just call them baby dragons
The correct spelling of the term or system for alerting nurses is as two words "nurse call."
I believe the correct term you are looking for is is stunt double.
That would be the relationship. If she were to adopt him, son would be correct.