Achkinckeshacky; _Hackinkeshacky,_ 1645; _Hackinghsackin, Hackinkesack_ (1660); _Hackensack_ (1685); _Ackinsack, Hockquindachque; Hackquinsack,_ are early record forms of the name of primary application to the stream now known as the Hackensack, from which it was extended to the adjacent district, to an Indian settlement, and to an Indian sachem, or, as Van Tienhoven wrote, "A certain savage chief, named Haickquinsacq." (Breeden Raedt.) The most satisfactory interpretation of the name is that suggested by the late Dr. Trumbull: "From _Huckquan,_ Mass., _Hócquaan,_ Len., 'Hook,' and _sauk,_ 'mouth of a river'--literally, 'Hook-shaped mouth,' descriptive of the course of the stream around Bergen Point, by the Kil van Kull, [FN-1] to New York Bay." Campanus wrote _Hócküng,_ "Hook," and Zeisberger, _Hócquaan._ [FN-2] The German _Hacken,_ now Hackensack, means "Hook," as in German _Russel Hacken,_ "Pot-hook," a hook incurved at both ends, as the letter S; in Lenape _Hócquoan_ (Zeisb.). Probably simply a substitution. * * * * * [FN-1] Before entering New York Harbor, Hudson anchored his ship below the Narrows and sent out an exploring party in a boat, who entered the Narrows and ascended as far as Bergen Point, where they encountered a second channel which they explored as far as Newark Bay. The place where the second channel was met they called "The Kils," or channels, and so it has remained--incorrectly "Kills." The Narrows they called _Col,_ a pass or defile, or mountain-pass, hence _Kil van Col,_ channel of the Narrow Pass, and hence _Achter Col,_ a place behind the narrow channel. "Those [Indians] of Hackingsack, otherwise called Achter Col." (Journal of New Neth., 1641-47, Doc. Hist. N. Y., iv, 9.) . . . "Whether the Indians would sell us the hook of land behind the Kil van Col." (Col. Hist. N. Y., xiii, 280.) Achter Col became a general name for all that section of New Jersey. _Kul_ and _Kull_ are corruptions of _Col._ _Arthur Kull_ is now applied to Newark Bay. [FN-2] Heckewelder wrote "_Okhúcquan, Woâkhucquoan,_ or short _Húcquan_ for the modern _Occoquan,_ the name of a river in Virginia, and remarked, 'All these names signify a hook.'" (Trumbull.) Rev. Thomas Campanus (Holm), who was chaplain to the Swedish settlements on the Delaware, 1642-9, and who collected a vocabulary, wrote _Hócküng_ (_ueug_), "Hook." This sound of the word may have led the Dutch to adopt _Hackingh_ as an orthography--modern _Haking,_ "Hooking," incurved as a hook.