laver, n. any of various edible seaweeds, esp. Porphyra umbilicalis, having sheetlike fronds.
laver bread a Welsh dish of laver which is boiled, dipped in oatmeal, and fried.
1 Bibl. a large brass vessel for Jewish priests' ritual ablutions.
2 archaic a washing or fountain basin; a font.
ME lavo(u)r f. OF laveo(i)r f. LL (as LAVATORY)