The herb wintergreen. The N.E.D. has Sip-si-se-wa, 1814.
1818. [On the Schuylkill, the Indians] procured the herb called by them Phipsissiway, in great plenty…. I informed him that we had given Phipsissiway tea, very strong, and as hot as he could drink.—Joseph Cooper in the Am. Centinel: Mass. Spy, Feb. 25.
1818. The efficacious quality of pipsissiway. The plant is an evergreen, and sometimes called wintergreen.—Baltimore Patriot, n.d.
