wash up vs lave

wash up and lave both are verbs.

Word	Noun	Adjective	Verb	Adverb
wash up	No	No	Yes	No
lave	No	No	Yes	No

As verbs, wash up and lave are synonyms defined as:

wash up (verb)	lave (verb)
wash one's face and hands	cleanse (one's body) with soap and water
wear out completely	wash one's face and hands
be carried somewhere by water or as if by water	wash or flow against
wash dishes
carry somewhere (of water or current or waves)