Pali
The holy book of Buddhism is called the Tipitaka. It is written in Pali which is an olden Indian language. It is very voluminous and the English version has about forty volumes.
The Book of Matthew was written in Greek.
The book of Psalms was originally written in Hebrew.
early Indian language
Aramaic
In a book written in Spanish, spanish words would not be italicised. In a book written in English, foreign language words are written with italics if they are used as part of a normal sentence or paragraph. If it is an English language book about the Spanish lñanguage, as in a text book, the Spanish text would probably not be written in italics.
The Koran is written in Arabic.
"The Book Thief" was originally written in English by Markus Zusak.
Book of Leviticus in the Old Testament was originally written in Hebrew.
Greek not latin
The exact book that Buddhists use depends upon the sect they follow. For instance, those who follow the Nichiren sect use the Lotus Sutra as their guide.
the Tripitaka