[lave] n [ME (northern dial.), fr. OE laf; akin to OE belifan to remain--more at leave] (bef. 12c) chiefly dial: something that is left: residue
[2]lave vb laved ; lav.ing [ME, fr. OE lafian, fr. L lavare] vt (bef. 12c) 1 a: wash, bathe b: to flow along or against
2: pour ~ vi, archaic: to wash oneself: bathe