10 of the most obscure words only expert Scrabble players know

From Merriam-Webster: Archaic variant of piragua, or "a 2-masted flat-bottomed boat"

From Merriam-Webster: An alternate spelling of catty, or "any of various units of weight of China and southeast Asia varying around 1 1/3 pounds"

From BBC: "An old English word for sobbing"

From Merriam-Webster: "One of a class of criminals in India and Burma who rob and murder in roving gangs"

From Merriam-Webster: Alternate spelling of trews, or "close-fitting tartan trousers"

From Merriam-Webster: "Any of the nymphs in classical mythology living in and giving life to lakes, rivers, springs, and fountains"

From Merriam-Webster: "Plural of coniine, or a poisonous alkaloid found in poison hemlock."

From Merriam-Webster: "A Russian stringed instrument of the lute class"

From Merriam-Webster: "A type of Inuit parka"