PARYAI, Sanskrit parydya, meaning a synonym or convertible term, is used in Sikh literature spelt variously as priydi, pridy and praydya. It was a popular title for glossaries explaining terms and difficult words used in Guru Granth Sahib which were the forerunners of full scale translations or exegeses of the Scripture. The earliest and the best known are the two volumes by Bhai Chanda Singh, a scholar of the Giani school of theology which traces its origin from Guru Gobind Singh through Bhai Mani Singh Shahid. His Priydi Fdrsi Padon Ke is a glossary of Persian words which appear in the Guru Granth Sahib, while Priyd Sri Guru Granth Sahib Ji Adi covers all the difficult words and phrases.
SRI GURU GRANTH SAHIB (Guru = spiritual teacher ; Granth = book or volume ; Sahib, an honorific signifying master or lord) is the name by which the holy book of the Sikhs is commonly known. It is a voluminous anthology of the sacred verse by six of the ten Gurus whose compositions it carries and of some of the contemporary saints and men of devotion. The book is treated by the followers as Word incarnate, the embodiment and presence manifest or the spirit of the ten historical Gurus (Guru Nanak to Guru Gobind Singh).