brother
noun
[ ˈbrʌðə ]
• a man or boy in relation to other sons and daughters of his parents.
• "he recognized her from her strong resemblance to her brother"
• a (male) fellow Christian.
brother
exclamation
• used to express annoyance or surprise.
• "oh brother!"
Origin:
Old English brōthor, of Germanic origin; related to Dutch broeder and German Bruder, from an Indo-European root shared by Latin frater .