The present participle of ejaculate, meaning to say something suddenly and briefly, or referring to the physiological discharge of fluid.
From Latin ejaculari meaning 'to throw out,' from ex- (out) + jaculum (dart, javelin). Originally used only for sudden verbal exclamations, the physiological meaning developed later in medical terminology.
The word's primary meaning was actually 'to exclaim suddenly' for centuries before acquiring its modern physiological sense. Classic literature is full of characters 'ejaculating' surprise or dismay in perfectly innocent contexts!
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