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From excruciating + -ly.
Etymology from Wiktionary, CC BY-SA 4.0.
excruciatingly
Today it means: In an excruciating manner or to an excruciating degree; in a manner causing great anguish or pain. Full definition →
Today it means: In an excruciating manner or to an excruciating degree; in a manner causing great anguish or pain. Full definition →
From excruciating + -ly.
Etymology from Wiktionary, CC BY-SA 4.0.