1570s, from Latin immitigabilis, from assimilated form of in- "not" (see in- (1)) + mitigabilis, from past participle stem of mitigare "make mild or gentle" (see mitigate). Related: Immitigably.
immigrate
immigration
imminence
imminent
immiscible
immitigable
immobile
immobilise
immobility
immobilization
immobilize
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