Eggplant

wiktionary

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From egg +‎ plant, originally applied only to the white-colored, egg-shaped variety.

etymonline

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eggplant (n.)

also egg-plant, plant cultivated for its large oblong or ovate fruit, which is highly esteemed as a vegetable, 1763, from egg (n.) + plant (n.). Originally of the white variety. Compare aubergine.