Bible dictionaries
Brethren
What Bible dictionaries say about “Brethren”, one article after the other.
Easton’s Bible Dictionary & Webster’s 1828 Dictionary
Brethren - (Webster's 1828 Dictionary)
BRETH'REN, n. plu. of brother. It is used almost exclusively in solemn and scriptural language,in the place of brothers. [See Brother.]
Matthew George Easton, Easton’s Bible Dictionary; Noah Webster, American Dictionary of the English Language (1828)
The article in Easton + Webster 1828International Standard Bible Encyclopedia (ISBE 1915)
breth'-ren.
See BROTHER.
International Standard Bible Encyclopedia — James Orr, general editor and contributors; CrossWire SWORD module ISBE 2.2
The article in ISBE 1915