nudiustertian

(nu-di-uhs-TUR-shuhn)

adjective
Of or relating to the day before yesterday.

Etymology
From Latin nudius tertius, literally, today is the third day.]

Usage
"What dress the Queen is in this week: what the nudiustertian fashion of the court, I mean the very newest." — Nathaniel Ward; Simple Cobler of Aggawam; 1647.

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[fr. L. nudius tertius]  obs. rare  of the day before yesterday