interdigitate

inter- +‎ digitate

interdigitate (third-person singular simple present interdigitates, present participle interdigitating, simple past and past participle interdigitated)

1. (transitive) To fold or lock together, as when the fingers of one hand are laced between those of the other.
2. (intransitive) To become folded or locked together, like the fingers of a folded hand.
3. (transitive, figuratively) To intermingle; to present alternately items from one group and then another.
   • 1992, Rudolf M[athias] Schuster, The Hepaticae and Anthocerotae of North America: East of the Hundredth Meridian, volume V, New York, N.Y.: Columbia University Press, →ISBN, page viii:

     Thirdly, I continue to attempt to interdigitate the taxa in our flora with taxa of the remainder of the world.

• interdigitation

• collate