Im‐per′a‐to″ri‐al (?), a. [L. imperatorius.] 1. Commanding; imperative; authoritative.
2. Of or pertaining to the title or office of imperator. “Imperatorial laurels.” C. Merivale.
Webster's Dictionary 1913
Im‐per′a‐to″ri‐al (?), a. [L. imperatorius.] 1. Commanding; imperative; authoritative.
2. Of or pertaining to the title or office of imperator. “Imperatorial laurels.” C. Merivale.