Yapese is a member of the Malayo-Polynesian sub-group of Austronesian languages. It is spoken by about 6,600 people in the State of Yap, part of the Federated States of Micronesia, an archipelago of islands in the Pacific Ocean to the northeast of Papua New Guinea.
The Yapese language has influences from Spanish, German, Japanese and English, largely as a result of colonial occupation. There are three other languages, Ulithian, Woleaian, and Satawalese, which, along with English, have official status in Yap. Japanese is spoken by many older Yapese.
source
wikipedia.org,
omniglot.com &
ethnologue.com