The Collaborative International Dictionary of English v.0.48:

Lave \Lave\ (l[=a]v), v. t. [imp. & p. p. Laved (l[=a]vd); p.
   pr. & vb. n. Laving.] [F. laver, L. lavare, akin to luere
   to wash, Gr. ?. Cf. Ablution, Deluge, Lavender, Lava,
   Lotion.]
   To wash; to bathe; as, to lave a bruise.
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         His feet the foremost breakers lave.     --Byron.
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