Original: Referred to as SarasvatÃ DevÃ in Sanskrit (meaning "Goddess Saraswati"), Benzaiten is the goddess of everything that flows: water, words, speech, eloquence, music and by extension knowledge.
Simplified: Her Sanskrit name is "SarasvatÃ DevÃ", which means "flowing water". This is why Benzaiten is the goddess of everything that flows: water, words, speech, and music.