[f. EMBITTER + -ER.] One who or that which embitters.

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1752.  Johnson, in John Taylor, Serm. (1789), 224. The fear of death has always been considered as the … embitterer of the cup of joy.

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1827.  Hone, Every-day Bk., II. 12. Sitting to drink is … the embitterer of their enjoyments.

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1884.  Annie S. Swan, Dorothea Kirke, xiv. (1889), 127. That old man is nothing but a cumberer of the ground, an embitterer of the lives of others.

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