BEHALVES
Noun
behalves
plural of behalf
Usage notes
• This is used only with a plural, as in in their behalves or on the behalves of the plaintiff and defendant (with the as in that example).
Source: Wiktionary
BEHALF
Be*half", n. Etym: [OE. on-behalve in the name of, bihalven by the
side of, fr. AS. healf half, also side, part: akin to G. halb half,
halber on account of. See Be-, and Half, n.]
Definition: Advantage; favor; stead; benefit; interest; profit; support;
defense; vindication.
In behalf of his mistress's beauty. Sir P. Sidney.
Against whom he had contracted some prejudice in behalf of his
nation. Clarendon.
In behalf of, in the interest of.
– On behalf of, on account of; on the part of.
Source: Webster’s Unabridged Dictionary 1913 Edition