Analysis of information sources in references of the Wikipedia article "Cliffwood Beach, New Jersey" in English language version.
... on February 23, 1857, Matavan Township was incorporated. This included the village of Middletown Point, Mt. Pleasant, and Matavan. The Township was named for the creek as well as the village of Matavan. The spelling of "Matawan" or "Matavan" had been interchangeable, however, when the act was published "Matavan", a Lenape word meaning "where two rivers come together" had been used.
... on February 23, 1857, Matavan Township was incorporated. This included the village of Middletown Point, Mt. Pleasant, and Matavan. The Township was named for the creek as well as the village of Matavan. The spelling of "Matawan" or "Matavan" had been interchangeable, however, when the act was published "Matavan", a Lenape word meaning "where two rivers come together" had been used.