interregal en · ADJ
Etymology
From inter- + regal.
Meanings
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(not-comparable) Between kings, or their successive reigns.
When the crime came at last, it was as blundering as it was bloody ; at once premeditated and accidental; the isolated execution of an interregal conspiracy, existing for half a generation, yet exploding without concert […]
1856, John Lothrop Motley, The Rise of the Dutch Republic: In three volumes, page 261: