There are 13 words that end with 'wths'.
crwths | rowths | growths |
trowths | ingrowths | regrowths |
upgrowths | outgrowths | pregrowths |
overgrowths | intergrowths | supergrowths |
undergrowths | ||
Note: These 13 words that end with 'wths' are found from the USA & Canada version of the tournament Scrabble word list.