Webster's Revised Unabridged Dictionary · 1913

Behoof

Behoof ({not transcribed}) , noun

[Old English to bihove for the use of, Anglo-Saxon behōf advantage, a word implied in behōflīc necessary; akin to Swedish behof, Danish behov, German behuf, and English heave, the root meaning to seize, hence the meanings “to hold, make use of.” See Heave, transitive verb]

Advantage; profit; benefit; interest; use.
to hold, make use of.
No mean recompense it brings To your behoof. — Milton