IPA: /ˈrɛdʒ.i.əs/
KK: /ˈrɛdʒɪəs/
Relating to a king or something that is royal.
The regius professor was honored for his contributions to the field of science.
Regius is derived from the Latin word "regius" (meaning royal or kingly), which comes from "rex" (meaning king). The term signifies something that is of or pertaining to a king or royalty.
Think of the Latin word for king, 'rex', to remember that 'regius' means something that is royal or kingly.