geminous

And this the practice of Christians hath acknowledged, who have baptized these geminous births.

1672, Sir Thomas Browne, Pseudodoxia Epidemica (6th edition, book 3, chapter 15)

The reader will also observe that in the example just cited 'justice' is rendered by 'equality and justice;' on the same page he will find carelessness and inadvertency' where the original has only neglect; and so he will find throughout the book such geminous and even tergeminous renderings to the number of at least two hundred.

1861 March, “Critical Notices of Works on India and the East”, in Calcutta Review, volume 36, page v