Nawasink, Yan Dakah, Caquaney and Aquamack, are entered in the Indian deed to De Hart as names for lands purchased by him at Haverstraw in 1666. The deed reads: "A piece of land and meadow lying upon Hudson's River in several parcels, called by the Indians Nawasink, Yan Dakah, Caquaney, and Aquamack, within the limits of Averstraw, bounded on the east and north by Hudson's River, on the west by a creek called Menisakcungue, and on the south by the mountain." The mountain on the south could have been no other than Verdrietig Hoek, and the limit on the north the mouth of the creek in the cove formed by Grassy Point, which was long known as "The further neck." Further than is revealed by the names the places cannot be certainly identified. Taken in the order in the deed, _Newasink_ located a place that was "At (or on) a point or promontory." It is a pure Lenape name. _Yan Dakah_ is probably from _Yu Undach,_ "On this side," _i. e._ on the side towards the speaker. _Caquancy_ is so badly corrupted that its derivative is not recognizable. _Aquamack_ seems to be the same word that we have in Accomack, Va., meaning, "On the Other side," or "Other side lands." In deed to Florus Crom is mentioned "Another parcel of upland and meadow known by the name of _Ahequerenoy,_ lying north of the brook called Florus Falls and extending to Stony Point," the south line of which was the north line of the Haverstraw lands as later understood. The tract was known for years as "The end place." Sankapogh, Indian deed to Van Cortlandt, 1683--Sinkapogh, Songepogh, Tongapogh--is given as the name of a small stream flowing to the Hudson south of the stream called Assinapink, locally now known as Swamp Kill and Snake-hole Creek. The stream is the outlet of a pool or spring which forms a marsh at or near the foot of precipitous rocks. Probably an equivalent of Natick _Sonkippog,_ "Cool water." Poplopen's Creek, now so written, the name of the stream flowing to the Hudson between the sites of the Revolutionary forts Clinton and Montgomery, south of West Point, and also the name of one of the ponds of which the stream is the outlet, seems to be from English _Pop-looping_ (Dutch _Loopen_), and to describe the stream as flowing out quickly--_Pop_, "To issue forth with a quick, sudden movement"; _Looping_, "To run," to flow, to stream. The flow of the stream was controlled by the rise and fall of the waters in the ponds on the hills, seven in number. The outlet of Poplopen Pond is now dammed back to retain a head of water for milling purposes. It is a curious name. The possessive _'s_ does not belong to the original--Pop-looping Creek.