What is the etymology of Sanskrit word 'Diwali'?

The correct word is 'Deepavali' . The root of Sanskrit word ' Deepavali.'according to 'sanatan website' is as under: "The word Diwali has originated from Deepavali, which in turn is formed as deep (lamp) + avali (row). Deepavali is thus a row of lamps. During Diwali, lamps are lit everywhere. read more

Sanskrit on its decline gave birth to many prakrit (corrupt or degenerated forms) languages in North India. Diwali is a corruption of Deepavali meaning a row of lights. Deepa means light(s), avali means (a) row. read more

Diwali or Deepavali is the Hindu festival of lights celebrated every year in autumn in the northern hemisphere (spring in southern hemisphere). It is an official holiday in Fiji, Guyana, India, Malaysia, Mauritius, Myanmar, Nepal, Singapore, Sri Lanka, Suriname, and Trinidad and Tobago. read more

The word ‘Diwali’ is derived from the Sanskrit term ‘Deepavali’ and is a conjoined name made of two different words ‘Deepa’ and ‘Avali’. ‘Deepa’ means light and ‘Avali’ means ‘row’— thus the name implies ‘row of lights’. read more