Question

What spelling differences sets the English word night and the Greek word seven apart from the same word in other indo European languages

Answer 1

The English language is spoken by 750 million people in the world as either the official language of a nation, a second language, or in a mixture with other languages (such as pidgins and creoles.) English is the (or an) official language in England, Canada, Australia and New Zealand; however, the United States has no official language.

Answer 2

In English the word night starts with an NI other languages start with an N but diffrent spellings after the N. In Greek the word seven is Hepta, and in any of the other languages you'll find that none of them start with h.