No, it's not. LOL "Masseuse" comes from French, pronounced: "maa-ss-eu-ze" which is the feminine term. The plural in French is "masseuses."
"Eaux" comes after words ending in "-eau." For example: un bateau= des bateaux.
Oh, and the masculine for "masseuse" is "masseur," for which the plural is "masseurs."
RE: The Daily Owl, Ep. 02: Markets, A Stagnated Steemit, And Drumschooling