REGNANT
regnant, reigning, ruling
(adjective) exercising power or authority
Source: WordNet® 3.1
Etymology
Adjective
regnant (not comparable)
Reigning, ruling; currently holding power. [from 15th c.]
Dominant; holding sway; having particular power or influence. [from 17th c.]
Noun
regnant (plural regnants)
(obsolete) A sovereign or ruler.
Anagrams
• Gantner
Source: Wiktionary
Reg"nant (-nant), a. Etym: [L. regnans, -antis, p. pr. of regnare to
reign: cf. F régnant. See Reign.]
1. Exercising regal authority; reigning; as, a queen regnant.
2. Having the chief power; ruling; predominant; prevalent. "A traitor
to the vices regnant." Swift.
Source: Webster’s Unabridged Dictionary 1913 Edition