Luigi has a secret meaning?

[gamemaster1991]

I came across an interesting fact about Luigi that I want someone who know Japanese to double check. The trivia I found was that Luigi's Japanese name (ルイージ or Ruīji) is the same thing as/a pun off of the Japanese word for "Similar," as his sprites are just recolors of his brother's. I would love for this to be true but since I can't speak/read Japanese, I have no way of knowing. Can someone debunk/prove it for me?