Lave, v. t. [imp. & p. p. Laved; p. pr. & vb. n. Laving.]
Etymology: [F. laver, L. lavare, akin to luere to wash, Gr. Ablution, Deluge, Lavender, Lava, Lotion.]
To wash; to bathe; as, to lave a bruise. His feet the foremost breakers lave. Byron.
3 other Webster entries under this spelling
Lave, v. i.
To bathe; to wash one's self. In her chaste current oft the goddess laves. Pope.
Lave, v. t.
To lade, dip, or pour out. [Obs.] Dryden.
Lave, n.
The remainder; others. [Scot.] Bp. Hall.
Shades of meaning
Fernald has no entry of its own for lave; he lists it under cleanse.
He lists it without comment; the entries above explain its neighbors.