The name Gautam (Sanskrit: गौतम, a vrddhi patronymic of Gotama and also transliterated as Gautama or Gauthama) is one of the ancient Indian names and is derived from the Sanskrit roots गः gaḥ and तम tama. Tama means “darkness” and gaḥ means inter alia "bright light". Together, they indicate that one, who dispels darkness (i.e. ignorance) by his brilliance (i.e., spiritual knowledge).
- cf. The article was taken from http://www.ibiblio.org/sripedia/srirangasri/archives/srsvol/threads.html, Sri Ranga Sri archives with permission of Anbil Ramaswamy and was based on the monograph of Mahaamah Opaadhyaaya Sri Srivatsaankaachaar Swami, Head of Dept. French Indological Research Institute, Pondicherry and “MaharishigaL Charitram” by Mimamsa SirOmaNi Mimamsa Vidvan Mimamsa Kovida, Ubhaya Mimamsa Saaragjna, Veda Vedanta ChooDaamaNi Sri N.S. Devanathachariar, referred by Sri Srivatsankachariar Swami. Retrieved 2012-04-26.