The Collaborative International Dictionary
Extenuate \Ex*ten"u*ate\, v. t. [imp. & p. p. Extenuated; p. pr. & vb. n. Extenuating.] [L. extenuatus, p. p. of extenuare to make thin, loosen, weaken; ex out + tenuare to make thin, tenuis thin. See Tenuity.]
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To make thin or slender; to draw out so as to lessen the thickness.
His body behind the head becomes broad, from whence it is again extenuated all the way to the tail.
--Grew. -
To lessen; to palliate; to lessen or weaken the force of; to diminish the conception of, as crime, guilt, faults, ills, accusations, etc.; -- opposed to aggravate.
But fortune there extenuates the crime.
--Dryden.Let us extenuate, conceal, adorn the unpleasing reality.
--I. Taylor. -
To lower or degrade; to detract from. [Obs.]
Who can extenuate thee?
--Milton.Syn: To palliate; to mitigate. See Palliate.
Wiktionary
vb. (en-past of: extenuate)