WAX is validvalid

to coat with a natural, heat-sensitive substance [v WAXED, WAXES, WAXING] : WAXABLE [adj], WAXER [n]

1,117 of 196,601 in NWL2023·also valid in CSW24

a fatty substance [n -ES] / to treat with wax [v -ED, -ING, -ES] / to grow larger, also WEX, WEXE [v WAXED or WOX, (obsolete) WOXEN, WAXING, WAXES]