The word Punjab is a xenonym and exonym

 The word Punjab is a xenonym and exonym from the Persian words panj ("five") and Ab ("waters"), thus Panjab means "Five Rivers", which roughly means "Land of Five Rivers".[6] The five rivers are the Sutlej, Beas, Ravi, Chenab and Jehlum (also spelled Jhelum). Traditionally, in English, there used to be a definite article before the name, i.e. "The Punjab".The name is also sometimes spelled as "Panjab". While the Greeks already referred to Punjab as Pentapotamia, an inland delta of five converging rivers,[8] the name Punjab was given to the region by the Central Asian Turkic conquerors of India, and more popularly popularized by the Turco-Mongol Mughals