BEHOOF. As a word of discourse, Signifies need, (egestas, necessitas, indigentia.) It comes from behoove, (Sax. behoven,) to need or have need of. In a secondary sense, which is the law sense of the word, it signifies use, service, profit, advantage, (interesse, opus.) It occurs in conveyances of land in fee simple.

Source: Bouvier's Law Dictionary, Revised 6th Ed (1856)
 

Behoof \Be*hoof"\, n. [OE. to bihove for the use of, AS. beh?f advantage, a word implied in beh?fl[imac]c necessary; akin to Sw. behof, Dan. behov, G. behuf, and E. heave, the root meaning to seize, hence the meanings "to hold, make use of." See Heave, v. t.]

Advantage; profit; benefit; interest; use. [1913 Webster]

No mean recompense it brings To your behoof. --Milton. [1913 Webster]

Source: The Collaborative International Dictionary of English v.0.48
 

21 Moby Thesaurus words for "behoof": advantage, avail, behalf, benefit, benison, blessing, boon, convenience, gain, good, interest, percentage, point, profit, service, use, value, welfare, well-being, world of good, worth

Source: Moby Thesaurus II by Grady Ward, 1.0
 

Behoof \Be*hoof"\, n. [OE. to bihove for the use of, AS. beh?f advantage, a word implied in beh?fl[=i]c necessary; akin to Sw. behof, Dan. behov, G. behuf, and E. heave, the root meaning to seize, hence the meanings ``to hold, make use of.'' See Heave, v. t.]

Advantage; profit; benefit; interest; use.

No mean recompense it brings To your behoof. --Milton.

Source: Webster's Revised Unabridged Dictionary (1913)