Perlis, (Northern Malay: Peghelih), also known by its honorific title Perlis Indera Kayangan, is the smallest state in Malaysia by area and population. Located on the northwest coast of Peninsular Malaysia, it borders the Thai provinces of Satun and Songkhla to the north and the Malaysian state of Kedah to the south. It was called Palit () by the Siamese when it was under their influence. Perlis had a population of 227,025 as of the 2010 census. The capital of Perlis is Kangar, and the royal capital is Arau. Another important town is Padang Besar, at the Malaysia–Thailand border and Kuala Perlis, the ferry town to Langkawi. The main port and ferry terminal is at the small village of Kuala Perlis, linking mostly to Langkawi Island. Another important lately developed area is Pauh Putra within subdistrict of Kurong Anai which houses the main campus of Malaysia University of Perlis and Politeknik Tuanku Syed Sirajuddin. Perlis has a famous snake farm and research centre at Sungai Batu Pahat. Perlis State Park and Gua Kelam are among the popular tourist attractions. Etymology It is unclear how the name Perlis came about. There are several hypotheses: According to a Malaysian historian, Mohd Yusuf bin Adil, the name comes from the Thai phrase "Phrao Loi" (Southern Thai: พร้าวลอย) which means kelapa hanyut (coconut washed ashore) since there were many coconuts found on the shores of Kuala Perlis. The phrase has been shortened by locals until it sounded like "pereleh" or Perlis. It has also been suggested Perlis may be a shortened form of a Malay word "peroleh" (obtain) as the state was a "gift" from Kedah, since it was a part of Kedah before becoming a state on its own. According to Negeri Perlis Indera Kayangan: Sejarah Pembentukan Sebuah Negeri Berdaulat by Ahmad Ismail, the name comes from a tree of the same name, which may have gone extinct. Some researches suggests the name is derived from a Northern Malay dialect word "perelus" which roughly translates as "foot falling into a crack", since Perlis is said to have a wide land filled with mud, and the people's feet may sink into the mud. Additional suggestions include being named after someone, or derived from the French word "perlite" which means "rock" due to a huge rock near Sungei Perlis. The honorific Indera Kayangan was given by Tuanku Raja Syed Hussin Jamalullail (who ruled Perlis from