Islam in Kilakarai
The Moors of Kilakarai () are a Tamil Muslim community who form the largest ethnic group in Kilakarai comprising 80% of the towns total population. The Moors of Kilakarai are Marakkars. They are predominantly followers of Islam tracing their ancestry to Arab traders mostly from Arabia and Yemen who settled in Kilakarai some time between 8th-15th century. The Kilakarai Moors lived primarily as coastal trading and agricultural communities, preserving their Islamic cultural heritage while adopting many Southern Asian customs. During the period of Portuguese colonisation of Ceylon, a small population of Sri Lankan Moors settled down in Kilakarai  as they suffered widespread persecution. Language. The Arabic language brought by the early merchants is no longer spoken, though many Arabic words and phrases are still commonly used. Until the recent past, the Moors employed Arwi as their native language, though this is also extinct as a spoken language. Moors today use Tamil as their primary language with influence from Arabic. Many Arabic and Arabized words exist in the form of Tamil spoken by Kilakarai moors. Among many examples, greetings and blessings are exchanged in Arabic instead of Tamil, such as "Assalamu Alaikum" instead of Sandhiyum Samadanamum, "Jazakallah" instead of  Nandri and "Pinjhan/Finjan" for Bowl/Cup.There are also words which are unique to Kilakarai Moors and a few other Tamil Muslim communities such as "Laatha" for elder-sister, "Kaka" for elder-brother, "Umma" for mother and "Vappa" for father. There are also words derived from Sinhala such as "Mattapa" for terrace. There are also words from Purananuru era such as "Aanam" for Kulambu and "Puliaanam" for rasam or soup.