The spelling of the name Nicolas Grenier is quite straightforward. In IPA phonetic transcription, it would be written as /nikɔlas ɡrənjɛr/. The first syllable of Nicolas is pronounced like "nik-oh-las," with the stress on the second syllable. Grenier is pronounced with two syllables, with the stress on the second syllable, as "gruh-nyay." Overall, this is a very common and easy-to-spell name, with no unusual phonetic pronunciations that might cause confusion.
The name "Nicolas Grenier" does not have an etymology as it is not a word, but a combination of two proper nouns. "Nicolas" is a given name of Greek origin meaning "victory of the people". "Grenier" is a French surname derived from the word "grenier" meaning "granary" or "storehouse". Surnames often originated from occupations, locations, or personal characteristics.