(Can this(+) etymology be sourced?)
From Proto-Ryukyuan *mawa(ri)(si) (whence Kunigami まーすん (māsun), Miyako まーㇲ゙さまーㇲ゙ (māzsāmaz), Okinawan まーすん (māsun)),.
まーらしぃん (mārasïn)