Definition of "indenture"

And so the schoolmistress reconciled the recommendation to her conscience, and the indentures were cancelled, and the apprentice was free.

1847 January – 1848 July, William Makepeace Thackeray, chapter II, in Vanity Fair […], London: Bradbury and Evans […], published 1848

Walking the street very hungry, and not knowing what to do with himself, a crimp's bill was put into his hand, offering immediate entertainment and encouragement to such as would bind themselves to serve in America. He went directly, sign'd the indentures, was put into the ship, and came over, never writing a line to acquaint his friends what was become of him.

1771–1790, Benjamin Franklin, “The Autobiography [Part 1]”, in John Bigelow, editor, Autobiography of Benjamin Franklin. […], Philadelphia, Pa.: J[oshua] B[allinger] Lippincott & Co., published 1868, page 159

It was the critical moment of Oliver’s fate. If the inkstand had been where the old gentleman thought it was, he would have dipped his pen into it, and signed the indentures, and Oliver would have been straightway hurried off.

1837 March, Boz [pseudonym; Charles Dickens], “Relates How Oliver Twist Was Very Near Getting a Place, Which Would Not Have Been a Sinecure”, in Oliver Twist; or, The Parish Boy’s Progress. […], volume I, London: Richard Bentley, […], published 1838, page 46

For the next two years, Ann's position in the family grew to be more and more that of a daughter. If it had not been for the indentures lying serenely in that tall wooden desk, she would almost have forgotten, herself, that she was a bound girl.

1886, Mary E. Wilkins, The Adventures of Ann

The narrow windows, flanked by deep indentures into the walls, seemed formed rather to exclude than to admit the cheerful light; and the heavy and gloomy appearance of the thunder-sky added still farther to the obscurity.

1819, Jedadiah Cleishbotham [pseudonym; Walter Scott], chapter X, in Tales of My Landlord, Third Series. […], volume I (The Bride of Lammermoor), Edinburgh: […] [James Ballantyne and Co.] for Archibald Constable and Co.; London: Longman, Hurst, Rees, Orme, and Brown, […]; Hurst, Robinson, and Co. […], page 264