From 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.
[1913 Webster]
His feet the foremost breakers lave. --Byron.
[1913 Webster]