sikh is a word with its root originated from
Sikh A Sikh (/sɪk/; Punjabi: ਸਿੱਖ sikkh [sɪkkʰ]) is a person associated with Sikhism, a monotheistic religion that originated in the 15th century based on the revelation of Guru Nanak.[23] The term "Sikh" has its origin in the Sanskrit words शिष्य (śiṣya), meaning a disciple, or a student.[24][25] A Sikh, according to Article I of the Sikh Rehat Maryada (the Sikh code of conduct), is "any human being who faithfully believes in One Immortal Being; ten Gurus, from Guru Nanak to Guru Gobind Singh; Guru Granth Sahib; the teachings of the ten Gurus and the baptism bequeathed by the tenth Guru".[26]
India The name India is derived from Indus, which originates from the Old Persian word Hindu.[19] The latter term stems from the Sanskrit word Sindhu, which was the historical local appellation for the Indus River.[20] The ancient Greeks referred to the Indians as Indoi (Ἰνδοί), which translates as "The people of the Indus".[21]