Added 10 October 2026
regius
/ˈɹid͡ʒiəs/ adjective
Latin root: rēgius Wiktionary
adjective Definition from Wiktionary (CC BY-SA). Pronunciation from Wiktionary, via Kaikki.org. More about regius at Wordnik → Where our words come from →
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Of or relating to a king; royal.
regius professor, regius professorship
Origin
Learned borrowing from Latin rēgius, from rēx, rēgis (“a king”). Doublet of regious.
From Wiktionary, via Kaikki.org (CC BY-SA)