Definition of superexcellent in English:

superexcellent

adjective

  • 1That superexcels; excellent to a high degree, or above all others; very, or more than usually, excellent.

  • 2Freemasonry (chiefly US). Usually with capital initial. Designating a high degree of Master Mason, or a person who has attained this degree.

Origin

Early 16th century; earliest use found in John Fisher (c1469–1535), bishop of Rochester, cardinal, and martyr. From post-classical Latin superexcellent-, superexcellens that superexcels, superior, use as adjective of present participle of superexcellere superexcel.