Also see definition of "Extremity" in Word Study
Study Dictionary
Extremity
EXTREME; EXTREMITY [ISBE]
EXTREME; EXTREMITY - eks-trem', eks-trem'-i-ti We have the adjective "extreme" in 2 Esdras 5:14, "extreme fear," the Revised Version (British and American) "trembling"; in The Wisdom of Solomon 12:27, "extreme (terma) damnation," the Revised Version (British and American) "the last end of condemnation"; in 2 Macc 7:42, "extreme (huperballousas) tortures," the Revised Version (British and American) "exceeding barbarities"; in Ecclesiasticus 42:8 it is used as an adverb, "the extreme aged" (eschatogeros), the Revised Version (British and American) "of extreme old age."Extremity: pash; Septuagint paraptoma, occurs only in Job 35:15 the King James Version, the Revised Version (British and American) "arrogance," and akme in 2 Macc 1:7.
Also see definition of "Extremity" in Word Study