The correct spelling for more florescent is actually "more fluorescent". The IPA phonetic transcription for this word is /mɔːr flɔːˈrɛs(ə)nt/ , which breaks down to "more" (mɔːr) meaning additional or greater quantity, and "fluorescent" (flɔːˈrɛs(ə)nt) which refers to something emitting light when it is exposed to radiation, like a fluorescent bulb. It's important to pay attention to the correct spelling of words as it can drastically change the meaning and comprehension of a sentence.
The word "more fluorescent" does not have a specific etymology, as it is a combination of two distinct words, "more" and "fluorescent".
The word "more" comes from the Old English word "māra", which means "greater or larger in size, amount, or intensity". It has roots in the Proto-Germanic language, where it was derived from the PIE (Proto-Indo-European) root "*me-", meaning "measure".
On the other hand, "fluorescent" is derived from the Latin word "fluorescens", which is the present participle of the verb "fluorescere", meaning "to flow, to run or melt away". In its modern usage, "fluorescent" refers to a property exhibited by certain substances that emit visible light when exposed to electromagnetic radiation.