Bror is the modern word for brother, broder is an older and almost extinct form.
marios brother
That is the correct spelling of "brother" (male sibling).
HermanoHermano
"Bredda"
The correct spelling is "brother-in-law" (your wife's brother).
Frère is brother. Sœur is sister.
Cognato
mamo
The short answer here is no.
None in English
My brother and I are going CANOEING in our CANOE today.
The likely word is "uncle" (brother of a father or mother).