Definition of "intergraven"

And the work itſelf of the baſes, was entergraven: and there were gravings between the joinings.

1750, The Holy Bible […] Newly reviſed, and corrected according to the Clementin Edition of the Scriptures. (Douay–Rheims Bible, Challoner Revision), 3 Kings 7:28, page 144

again there are suggestions of the white man's work ingeniously intergraven with his own conceptions of art not so rude or savage

1903 December, William M. Beauchamp, “Metallic Ornaments of the New York Indians”, in New York State Museum Bulletin‎, number 305, page 90