bhrāter- / Indo-European roots
Examples of words with the root bhrāter-: brother, bully, confrere, Fra, fraternal, fratricide, friar, pal, phratry.
Brother, male agnate.
a. brother from Old English brōthor, brother;
b. bully1 from Middle Dutch broeder, brother. Both a and b from Germanic *brōthar-.
2. Fra, fraternal, fraternity, fraternize, friar; confrere, fratricide from Latin frāter, brother.
3. phratry from Greek phrātēr, fellow member of a clan.
4. pal from Sanskrit bhrātā, bhrātar-, brother.
[Pokorny bhrāter- 163.]