1580s, "rival, competitor," from Latin aemulator "a zealous imitator, imitative rival," agent noun from aemulari "to rival" (see emulation). The meaning "imitative rival" in English is from 1650s.
empyreal
empyrean
emu
emulate
emulation
emulator
emulgent
emulous
emulsification
emulsifier
emulsify
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