With exception of Mobilian Jargon, most of the auxiliary languages that developed in North America are thought to have been brought about by contact with Europeans.
With a strong population, the Massachusett sachems were head of a loose alliance of peoples, covering all the Massachusett-speaking peoples, the Nipmuc and even the unclassified peoples of the Pioneer Valley before their numbers were felled by the leptospirosis outbreak circa 1619 and subsequent virgin soil epidemics and the large numbers of English colonists that usurped their land and competed with them for resources.
[3] Edward Winslow, who served as governor of the Plymouth Colony, had developed a close relationship with the Wampanoag sachem Massasoit and other local Wampanoag leaders and was one of a handful of the Pilgrims that had any command of the local 'Indian language.'
Similar accounts are recorded by the Dutch and Swedish colonists of what is now the Mid-Atlantic States and the traditional homeland of the Lenape peoples.
[8] Massachusett Pidgin spread with the fur trade, allowing Indians to communicate with northern and interior tribes and exchange items for beaver pelts, which were highly prized by the English settlers.
As beaver became scarce in southern New England, the Indian traders and hunters had to trek further to obtain the desired pelts, likely taking the easy to learn and somewhat intelligible Massachusett Pidgin.
This was part due to assimilation pressures, increased rates of intermarriage with Blacks and Whites outside the speech community and This co-existed with the usage of Massachusett Pidgin, but as English became more and more necessary to trade and participate in society, and the new settlers were less eager to bother to learn the 'Indian language,' Massachusett Pidgin was rapidly eclipsed by the sole use of Massachusett Pidgin English.
A handful of common words were either borrowings from other Algonquian languages or were archaic retentions that were better understood by other peoples.
English words were also overtly marked with the Massachusett declensional pronoun and verb conjugation system, producing hybrid forms.