different between overextended vs lengthy

English

overextended

overextended (comparative more overextended, superlative most overextended)

From length +? -y.

lengthy (comparative lengthier, superlative lengthiest)

Having length; long and overextended, especially in time rather than dimension.
a lengthy text
a lengthy discussion
a laborious and lengthy process
She died last night after a lengthy illness.
They received lengthy prison terms.
Speaking or writing at length; long-winded.
- 1863, John Cumming, Driftwood, seaweed and fallen leaves (volume 1, page 92)
  If, in addition to being a lengthy preacher, he had also been a Rev. Mr. Mumbles or a Rev. Dr. Drone, the penance thus endured by his people would have been intolerably severe.

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