hi there...well I never met the word "lotus" in arabic yet (since it is not a usual discussion subject
) but my fantastic arabic-english dictionnary tells me it is simply "lotus" or better "al-lotus", and written like this اللوتس , however it does seem to be a tricky word in arabic because my arabic-french dictionnary lists it with a different "t" (hard to explain to non-arabic speakers but I can give u the two letters, note there is a difference in pronounciation: ط ت those would be the two...) then I found another word for it: عرائس النيل in the french dictionnary though my english one doesn't have this word.
So if you ask me, I would advice to look up arabic girls names as was suggested in this thread because :
1) as you see it is very difficult to translate and mostly
transliterate some names into arabic
2) you may never know how the word is used. To give you an example I will use the word Tamar or Tamr. It means "fruit" or "date" in both hebrew and arabic. Whilst in hebrew this name is very popular and considered very pretty and girlish, in arabic it would be just too funny being called after a fruit - in hebrew, naming one's child after flowers, fruits, plants or animals is very common and popular...not so much in arabic. so you see? you need to know the customs of naming in a particular language and to avoid being laughed at by an arabic speaking audience later on, you should pick your name with a lot of care. amongst arabic names that I particulary like (and this is just my personnal opinion) are: dalal, amal (hope), leyla(night), aliya(to ascend, ascension, something in that way) , iman (faith) and zahra (flower)...when looking up internet lists on the internet,
one last advice: always double-check with an arab friend if that name does really mean what it says on the website, because there are often very big mistakes!!!
hope I helped