'Genesis' is a noun that is derived from ancient greek. Its root is the verb 'genn'o' (γεννώ) which means to 'give birth'. Genesis as a word is famus from the book of the old Testament (Jewish Bible) which has the same name. Often the word genesis is used instead of the word 'creation' ex. "in my point of view the biggest technological development of the last 50 years is the genesis of the microchip" I believe the noun genesis in english is not commonly used by its meaning but instead as a title in religious context or as direct reference to the book.