did not come into use till the seventeenth century. Dean Trench points out that Chatterton betrayed his forgeries by the line “Life and its goods I scorn,” but the word its was not in use till several centuries after the death of the monk to whom the words are ascribed. In 1548 it was used for its.
“The loue and deuotion towardes God also hath it infancie, and hath it commyng forward in growth of age.” (1548.)
Source: Dictionary of Phrase and Fable, E. Cobham Brewer, 1894