Co-Brother 

Brothers-in-Law related by marriage. Specifically men married to sisters related by blood, sisters of the same set of parents.

The usage signifies the ties of family or brotherhood via marriage, perhaps a reflection of the remains the matriarchal society prevalent in Southern India in pre-history.

Brandon is my co-brother, his wife Tammy is my wife's sister.

Co-Brother by Sunida February 22, 2011

co-brother-in-law 

The husband of one's spouse's sister.

My co-brother-in-law is a good person.

co-brother-in-law by Elivaldeq November 24, 2019

co-brother-in-law 

Spouse's sibling's husband.

My co-brother-in-law is a good person.

co-brother-in-law by Wonbig October 13, 2021

co-brother-in-law 

Spouse's sibling's husband.

co-brother-in-law.

co-brother-in-law by Simaduria July 26, 2024

step-co-brother-in-law 

Spouse's stepsibling's husband.

My step-co-brother-in-law is a good person.

step-co-brother-in-law by Wonbig October 13, 2021

half-co-brother-in-law 

Spouse's half-sibling's husband.

My half-co-brother-in-law is a good person.

half-co-brother-in-law by Wonbig October 13, 2021

half-co-brother-in-law 

Spouse's half-sibling's husband.

half-co-brother-in-law.

half-co-brother-in-law by Simaduria July 27, 2024