Shenandoah (Shenandoah Corners, East Fishkill) is an Iroquoian name of modern introduction here. It is met in place in Saratoga County and at Wyoming, Pa. (See Shannondhoi.) Stissing, now the name of a hill and of a lake one mile west of the village of Pine Plains, Duchess County, is probably an apheresis of _Mistissing,_ a "Great rock," and belongs to the hill, which rises 400 or 500 feet above the valley and is crowned with a mass of naked rock, described by one writer as "resembling a huge boulder transported there." Poughkeepsie, now so written, is of record in many forms of which Pooghkeepesingh, 1683; Pogkeepke, 1702; Pokeapsinck, 1703; Pacaksing, 1704; Poghkeepsie, 1766; Poughkeepsie, 1767, are the earlier. The locative of the name and the key to its explanation are clearly determined by the description in a gift deed to Peter Lansing and Jan Smedes, in 1683: "A waterfall near the bank of the river called Pooghkeepesingh;" [FN-1] in petition of Peter Lansing and Arnout Velie, in 1704: "Beginning at a creek called Pakaksing, by ye river side." [FN-2] There are other record applications, but are probably extensions, as Poghkeepke (1702), given as the name of a "muddy pond" in the vicinity. Schoolcraft's interpretation, "Safe harbor," from _Apokeepsing,_ is questioned by W. R. Gerard, who, from a personal acquaintance with the locative, "A water-fall," writes: "The name refers not to the fall, but to the basin of water worn out in the rocks at the foot of the fall. Zeisberger would have written the word _Āpuchkìpìsink,_ that is, 'At the rock-pool (or basin) of water.' _Ā-puchk-ìpìs-ink_ is a composition of _-puchk,_ 'rock'; _ipis,_ in composition, 'little water,' 'pool of water,' 'pond,' 'little lake,' etc." _Pooghk_ is no doubt from _ápughk_ (apuchk), "rock." The stream has long been known as the Fall Kill. Primarily there seems to have been three falls upon it, of which _Matapan_ will be referred to later. * * * * * [FN-1] "This fifth day of May, 1683, appeared before me . . . a Highland Indian called Massang, who declared herewith that he has given as a free gift, a bouwery (farm) to Pieter Lansingh, and a bouwery to Jan Smeedes, a young glazier, also a waterfall near the bank of the river, to build a mill thereon. The waterfall is called Pooghkeepesingh and the land Minnisingh, situated on the east side of the river." (Col. Hist. N. Y., xiii, 571.) [FN-2] Cal. N. Y. Land Papers, 71. There are forty-nine record orthographies of the term, from which a selection could be made as a basis of interpretation. _Poghkeepke,_ for example, might be accepted as meaning, "Muddy Pond," although there is neither a word or particle in it that would warrant the conclusion.