The Collaborative International Dictionary of English v.0.48:

Behoove \Be*hoove"\, v. t. [imp. & p. p. Behooved; p. pr. &
   vb. n. Behooving.] [OE. bihoven, behoven, AS. beh?fian to
   have need of, fr. beh?f. See Behoof.]
   To be necessary for; to be fit for; to be meet for, with
   respect to necessity, duty, or convenience; -- mostly used
   impersonally.
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         And thus it behooved Christ to suffer.   --Luke xxiv.
                                                  46.
   [1913 Webster] [Also written behove.]
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