"spending or bestowing profusely," mid-15c., from Middle French lavasse (n.) "torrent of rain, deluge" (15c.), from Old French lavache, from laver "to wash," from Latin lavare "to wash" (from PIE root *leue- "to wash"). Related: Lavishly; lavishness.
lavish (v.)
"spend or bestow profusely," 1540s, from lavish (adj.). Related: Lavished; lavisher; lavishing.
the critics were lavish in their praise
distributed gifts with a lavish hand
a lavish buffet
lavaliere
lavation
lavatory
lave
lavender
lavish
law
law-abiding
law-breaker
lawful
law-giver