Merriam-Webster's Collegiate® Dictionary, 11th Edition
LAVE
I. noun see: leave Date: before 12th century something that is left ; residue ,
II. verb (laved; laving)
Etymology: Middle English, from Old English lafian, from Latin lavare Date: before 12th century transitive verb
1. wash , bathe , to flow along or against, pour , intransitive verb to wash oneself ; bathe